Make some playground titles more descriptive

Author: Symbitic

README.md

@@ -62,60 +62,57 @@ _Noteworthy examples of community-contributed content on the Babylon.js playgrou
 - [Ammo.js Heightmap](https://playground.babylonjs.com/#8T3YBR#2)
 - [Antigravity racing game demo](https://playground.babylonjs.com/#WVPVWL#0)
 - [Augmented Reality Drum](https://playground.babylonjs.com/#VXA85M#5)
-- [Basic Swimming Fish](https://playground.babylonjs.com/#9CMU0F#0)
-- [Basketball](https://playground.babylonjs.com/#AL6VAN#1)
+- [AI Basketball shooter](https://playground.babylonjs.com/#AL6VAN#1)
 - [Bowling and grabbing in XR](https://playground.babylonjs.com/#KBS9I5#925)
-- [Bowling](https://playground.babylonjs.com/#6QYHV7#29)
-- [Bowling lane](https://playground.babylonjs.com/#7S3ZHU#15)
+- [Bowling lane showing gutters and physics](https://playground.babylonjs.com/#7S3ZHU#15)
 - [Buttons always face user](https://playground.babylonjs.com/#CUH660#27)
 - [Camera positioning on event](https://playground.babylonjs.com/#0PHDVB#0)
 - [Captain Dude Fishing](https://playground.babylonjs.com/#1YD970#283)
 - [Car following path](https://playground.babylonjs.com/#1YD970#14)
 - [Change color on collide](https://playground.babylonjs.com/#502Z8L#0)
-- [Chessboard Demo](https://playground.babylonjs.com/#AH85PF#53)
-- [Circle menu](https://playground.babylonjs.com/#092XX3#13)
-- [Collectible health packs](https://playground.babylonjs.com/#U8MEB0#114)
+- [Chessboard layout and camera](https://playground.babylonjs.com/#AH85PF#53)
+- [Circle menu in 3D GUI](https://playground.babylonjs.com/#092XX3#13)
 - [Colliding and deforming cubes](https://playground.babylonjs.com/#RGNDK2#2)
-- [Coronavirus](https://playground.babylonjs.com/#3FJZD5#4)
-- [Custom button mesh](https://playground.babylonjs.com/#D7LQDZ#1)
+- [Coronavirus rendering pipeline and shaders](https://playground.babylonjs.com/#3FJZD5#4)
+- [Custom mesh for 3D button](https://playground.babylonjs.com/#D7LQDZ#1)
 - [Custom WebXR controller mesh](https://playground.babylonjs.com/#355XBJ#16)
 - [Dock the boat](https://playground.babylonjs.com/#5MJ1X9#13)
-- [Dynamic snow demo](https://playground.babylonjs.com/#5ZCGRM#2860)
+- [Dynamic snow generation](https://playground.babylonjs.com/#5ZCGRM#2860)
 - [Dynamic text in UI](https://playground.babylonjs.com/#9U086#4)
 - [Exploding Lofi Sphere](https://playground.babylonjs.com/#HDHQN#55)
 - [Exploding Lofi Torus](https://playground.babylonjs.com/#HDHQN#56)
 - [Exploding Object with Solid Particles](https://playground.babylonjs.com/#CWAQ1W#12)
 - [Explosion on keydown](https://playground.babylonjs.com/#VS5XS7#0)
 - [Explosions + City burning](https://playground.babylonjs.com/#4HUQQ#1479)
-- [Fenerator 3D with explosion](https://playground.babylonjs.com/#RDJ26Q#1288)
+- [Fenerator 3D with explosion generator](https://playground.babylonjs.com/#RDJ26Q#1288)
 - [Flight Simulator Experiment](https://playground.babylonjs.com/#UL7W2M#0)
 - [Fruit Ninja VR Game](https://playground.babylonjs.com/#22KIIK#22)
 - [Furball Shader](https://playground.babylonjs.com/#LVJG7H#0)
 - [Glowing marbles falling](https://playground.babylonjs.com/#45FPFC#13)
 - [Glow World](https://playground.babylonjs.com/#6MQB2X#158)
 - [Grab and move a ball in WebXR](https://playground.babylonjs.com/#HY823G#7)
-- [Grim Grinning Ghosts](https://playground.babylonjs.com/#GVPILZ#0)
+- [Grim Grinning Ghosts with singing](https://playground.babylonjs.com/#GVPILZ#0)
 - [God of War NME Weapons FX Demo](https://playground.babylonjs.com/#7XU4D8#1)
-- [Great White Shark](https://playground.babylonjs.com/#ISZ7Y2#0)
+- [Great White Shark animated GLTF model](https://playground.babylonjs.com/#ISZ7Y2#0)
 - [GUI follows viewpoint in WebXR](https://playground.babylonjs.com/#HJZBRG#100)
 - [Gun firing](https://playground.babylonjs.com/#E8C51D#35)
 - [Happy Holidays 2020 VR](https://playground.babylonjs.com/#0IRV8X#2)
 - [Happy holidays custom font](https://playground.babylonjs.com/#BP7QYG#13)
 - [HERO X](https://playground.babylonjs.com/#A8X91Q#10)
-- [Hit the cube](https://playground.babylonjs.com/#0JC454#16)
+- [Hit the cube pointer tracker](https://playground.babylonjs.com/#0JC454#16)
 - [Holographic keyboard](https://playground.babylonjs.com/#LU3FLF#6)
-- [Hopping game](https://playground.babylonjs.com/#0IIB3N#44)
-- [HtmlMesh demo](https://playground.babylonjs.com/#Y2LIXI#44)
+- [Hopping game with infinite running](https://playground.babylonjs.com/#0IIB3N#44)
+- [HtmlMesh demo with overlay](https://playground.babylonjs.com/#Y2LIXI#44)
 - [Joint Impulse Example](https://playground.babylonjs.com/#UFVU18#18)
-- [Laser Saber](https://playground.babylonjs.com/#ZS41RU#0)
-- [Lego Buggy Mesh](https://playground.babylonjs.com/#K7TJIG#0)
-- [Light Paddle](https://playground.babylonjs.com/#6C8005#1)
+- [Laser Saber mesh](https://playground.babylonjs.com/#ZS41RU#0)
+- [Lego Buggy mesh](https://playground.babylonjs.com/#K7TJIG#0)
+- [Light Paddle glowing mesh](https://playground.babylonjs.com/#6C8005#1)
 - [Mallot and Nail VR](https://playground.babylonjs.com/#IT1QZU#13)
 - [Marble slide](https://playground.babylonjs.com/#YRP925#0)
 - [Marble Tower](https://playground.babylonjs.com/#3I55DK#0)
 - [Mesh Speech Synthesis API](https://playground.babylonjs.com/#NE96B8#10)
 - [Music Visualizer](https://playground.babylonjs.com/#MNC4HP#0)
-- [Newton cradle](https://playground.babylonjs.com/#8WC6ZN#112)
+- [Newton's cradle physics](https://playground.babylonjs.com/#8WC6ZN#112)
 - [Open url by clicking object](https://playground.babylonjs.com/#11XV5X#13)
 - [Pac-Man Arcade Machine in WebXR](https://playground.babylonjs.com/#4WPJCV#34)
 - [physicsImposter parenting](https://playground.babylonjs.com/#ZENDZ2#0)
@@ -124,40 +121,40 @@ _Noteworthy examples of community-contributed content on the Babylon.js playgrou
 - [Ping pong in 3D](https://playground.babylonjs.com/#RYXIT#9)
 - [Point Cloud Morphing](https://playground.babylonjs.com/#2S8L5U#1)
 - [portal + gravity mechanics](https://playground.babylonjs.com/#ZU8CV4#12)
-- [Portal](https://playground.babylonjs.com/#ACPMQL#2)
+- [Portal effect using shaders](https://playground.babylonjs.com/#ACPMQL#2)
 - [Progressive loading of glTF with LOD](https://playground.babylonjs.com/#ARN6TJ#5)
 - [Pulsars / Imps](https://playground.babylonjs.com/#1ND6TH#265)
 - [Rollercoaster](https://playground.babylonjs.com/#1HH4OJ#29)
 - [Screen Capture and Composition](https://playground.babylonjs.com/#RBX8Y4#22)
 - [Shattered mesh with baked physics demo](https://playground.babylonjs.com/#1BGGDU#0)
 - [Simple XmlLoader GUI](https://playground.babylonjs.com/#S0IW99#23)
-- [Slice mesh](https://playground.babylonjs.com/#B2DP5I#7)
+- [Slice CSG mesh on click](https://playground.babylonjs.com/#B2DP5I#7)
 - [Soft body physics - wrecking ball + blocks](https://playground.babylonjs.com/#8WC6ZN#121)
 - [Solid Particle System collisions](https://playground.babylonjs.com/#10RCC9#0)
-- [Space Invader](https://playground.babylonjs.com/#JXJBPS#5)
+- [Space Invader visual effects game](https://playground.babylonjs.com/#JXJBPS#5)
 - [Space Ship Battle](https://playground.babylonjs.com/#G03CV5#0)
 - [Spheres change color only when looked at](https://playground.babylonjs.com/#0MGV2I#0)
-- [Sphere Spiral](https://playground.babylonjs.com/#ND4U2L#0)
+- [Sphere Spiral infinite rendering pipeline](https://playground.babylonjs.com/#ND4U2L#0)
 - [SPS change color on click](https://playground.babylonjs.com/#2FPT1A#351)
-- [StakeShooter](https://playground.babylonjs.com/#Z88Q4W#19)
-- [Submarine](https://playground.babylonjs.com/#165IV6#2526)
-- [Table billards](https://playground.babylonjs.com/#1DDSV5#0)
+- [StakeShooter game](https://playground.babylonjs.com/#Z88Q4W#19)
+- [Submarine underwater game](https://playground.babylonjs.com/#165IV6#2526)
+- [Table billards physics demo](https://playground.babylonjs.com/#1DDSV5#0)
 - [Tank playground with sound](https://playground.babylonjs.com/#52M011#2)
-- [Tap to Bounce](https://playground.babylonjs.com/#88MM6V#0)
-- [Targeting System](https://playground.babylonjs.com/#CMS27E#11)
+- [Tap to Bounce Cylinder using imposters](https://playground.babylonjs.com/#88MM6V#0)
+- [Targeting System for turrets](https://playground.babylonjs.com/#CMS27E#11)
 - [TensorFlow.js + Webcam Demo](https://playground.babylonjs.com/#H19VH7#44)
-- [TestTowerDef2](https://playground.babylonjs.com/#XP6NNP#42)
+- [TestTowerDef2 Tower Defense Game](https://playground.babylonjs.com/#XP6NNP#42)
 - [The Pirate Fort](https://playground.babylonjs.com/#C21DGD#3)
-- [Tic-Tac-Toe](https://playground.babylonjs.com/#2WR12Z#2)
+- [Tic-Tac-Toe game](https://playground.babylonjs.com/#2WR12Z#2)
 - [Track with Carriage Following It (First Person)](https://playground.babylonjs.com/#SQFG0Q#6)
 - [Track with Carriage Following It (Third Person)](https://playground.babylonjs.com/#SQFG0Q#5)
-- [Trailing mesh](https://playground.babylonjs.com/#Z07JE1#2)
+- [Trailing mesh demo](https://playground.babylonjs.com/#Z07JE1#2)
 - [Under Water Demo](https://playground.babylonjs.com/#LPTLZM#0)
 - [Velocity test on soccer balls](https://playground.babylonjs.com/#5W4GH1#10)
 - [Virtual Joystick GUI](https://playground.babylonjs.com/#C6V6UY#49)
 - [Virtual Tour Booth](https://playground.babylonjs.com/#1JDJ9F#9)
 - [VR Rythym Game](https://playground.babylonjs.com/#9M1I08#7)
-- [Watch out for swords](https://playground.babylonjs.com/#ZD364L#17)
+- [Watch out for swords game](https://playground.babylonjs.com/#ZD364L#17)
 - [Water Refraction with RTT](https://playground.babylonjs.com/#7ILX7T#0)
 - [Wave Racer](https://playground.babylonjs.com/#WBEEFF#1)
 - [WebXR Catching Game](https://playground.babylonjs.com/#PKQ6JV#3)