Inserting and updating links to tutorials

README.md

@@ -46,6 +46,10 @@ It's a great way to learn.
 * [**C++**: _Physically Based Rendering:From Theory To Implementation_](http://www.pbr-book.org/)
 * [**C++**: _Ray Tracing in One Weekend_](https://raytracing.github.io/books/RayTracingInOneWeekend.html)
 * [**C++**: _Rasterization: a Practical Implementation_](https://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation/overview-rasterization-algorithm)
+* [**C++**: _Developing a Software Renderer (Part 1)_](https://trenki2.github.io/blog/2017/06/06/developing-a-software-renderer-part1/)
+* [**C++**: _Developing a Software Renderer (Part 2)_](https://trenki2.github.io/blog/2017/06/06/developing-a-software-renderer-part2/)
+* [**C++**: _Developing a Software Renderer (Part 3)_](https://trenki2.github.io/blog/2017/06/06/developing-a-software-renderer-part3/)
+* [**C++**: _Developing a Software Renderer (Part 4)_](https://trenki2.github.io/blog/2017/06/06/developing-a-software-renderer-part4/)
 * [**C# / TypeScript / JavaScript**: _Learning how to write a 3D soft engine from scratch in C#, TypeScript or JavaScript_](https://www.davrous.com/2013/06/13/tutorial-series-learning-how-to-write-a-3d-soft-engine-from-scratch-in-c-typescript-or-javascript/)
 * [**Java / JavaScript**: _Build your own 3D renderer_](https://avik-das.github.io/build-your-own-raytracer/)
 * [**Java**: _How to create your own simple 3D render engine in pure Java_](http://blog.rogach.org/2015/08/how-to-create-your-own-simple-3d-render.html)
@@ -105,7 +109,7 @@ It's a great way to learn.
 * [**Node.js**: _Building A Simple AI Chatbot With Web Speech API And Node.js_](https://www.smashingmagazine.com/2017/08/ai-chatbot-web-speech-api-node-js/)
 * [**Python**: _How to Build Your First Slack Bot with Python_](https://www.fullstackpython.com/blog/build-first-slack-bot-python.html)
 * [**Python**: _How to build a Slack Bot with Python using Slack Events API & Django under 20 minute_](https://medium.com/freehunch/how-to-build-a-slack-bot-with-python-using-slack-events-api-django-under-20-minute-code-included-269c3a9bf64e)
-* [**Python**: _Build a Reddit Bot_](http://pythonforengineers.com/build-a-reddit-bot-part-1/)
+* [**Python**: _Build a Reddit Bot_](https://new.pythonforengineers.com/blog/build-a-reddit-bot-part-1)
 * [**Python**: _How To Make A Reddit Bot_](https://www.youtube.com/watch?v=krTUf7BpTc0) [video]
 * [**Python**: _How To Create a Telegram Bot Using Python_](https://www.freecodecamp.org/news/how-to-create-a-telegram-bot-using-python/)
 * [**Python**: _Create a Twitter Bot in Python Using Tweepy_](https://medium.freecodecamp.org/creating-a-twitter-bot-in-python-with-tweepy-ac524157a607)
@@ -132,6 +136,7 @@ It's a great way to learn.
 * [**C#**: _Build Your Own Database_](https://www.codeproject.com/Articles/1029838/Build-Your-Own-Database)
 * [**Clojure**: _An Archaeology-Inspired Database_](http://aosabook.org/en/500L/an-archaeology-inspired-database.html)
 * [**Crystal**: _Why you should build your own NoSQL Database_](https://medium.com/@marceloboeira/why-you-should-build-your-own-nosql-database-9bbba42039f5)
+* [**Go**: _Build a NoSQL Database From Scratch in 1000 Lines of Code using Go_](https://betterprogramming.pub/build-a-nosql-database-from-the-scratch-in-1000-lines-of-code-8ed1c15ed924)
 * [**Go**: _Build Your Own Database from Scratch: Persistence, Indexing, Concurrency_](https://build-your-own.org/database/)
 * [**Go**: _Build Your Own Redis from Scratch_](https://www.build-redis-from-scratch.dev/)
 * [**JavaScript**: _Dagoba: an in-memory graph database_](http://aosabook.org/en/500L/dagoba-an-in-memory-graph-database.html)
@@ -255,17 +260,20 @@ It's a great way to learn.
 * [**Python**: _Neural Networks: Zero to Hero_](https://www.youtube.com/playlist?list=PLAqhIrjkxbuWI23v9cThsA9GvCAUhRvKZ)
 
 #### Build your own `Operating System`
+_For more general information, see OSDev.org and OSDev.wiki_
 
 * [**Assembly**: _Writing a Tiny x86 Bootloader_](http://joebergeron.io/posts/post_two.html)
 * [**Assembly**: _Baking Pi – Operating Systems Development_](http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/index.html)
 * [**C**: _Building a software and hardware stack for a simple computer from scratch_](https://www.youtube.com/watch?v=ZjwvMcP3Nf0&list=PLU94OURih-CiP4WxKSMt3UcwMSDM3aTtX) [video]
+* [**C**: _Building an OS_](https://www.youtube.com/playlist?list=PLFjM7v6KGMpiH2G-kT781ByCNC_0pKpPN)
 * [**C**: _Operating Systems: From 0 to 1_](https://tuhdo.github.io/os01/)
 * [**C**: _The little book about OS development_](https://littleosbook.github.io/)
 * [**C**: _Roll your own toy UNIX-clone OS_](http://jamesmolloy.co.uk/tutorial_html/)
 * [**C**: _Kernel 101 – Let’s write a Kernel_](https://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel)
 * [**C**: _Kernel 201 – Let’s write a Kernel with keyboard and screen support_](https://arjunsreedharan.org/post/99370248137/kernel-201-lets-write-a-kernel-with-keyboard)
 * [**C**: _Build a minimal multi-tasking kernel for ARM from scratch_](https://github.com/jserv/mini-arm-os)
 * [**C**: _How to create an OS from scratch_](https://github.com/cfenollosa/os-tutorial)
+* [**(any)**: _Making Simple Graphical Linux Distro from Scratch_](https://www.youtube.com/watch?v=guSDz5Iwgw0)
 * [**C**: _Malloc tutorial_](https://danluu.com/malloc-tutorial/)
 * [**C**: _Hack the virtual memory_](https://blog.holbertonschool.com/hack-the-virtual-memory-c-strings-proc/)
 * [**C**: _Learning operating system development using Linux kernel and Raspberry Pi_](https://github.com/s-matyukevich/raspberry-pi-os)
@@ -412,6 +420,7 @@ It's a great way to learn.
 
 * [**(any)**: _From NAND to Tetris: Building a Modern Computer From First Principles_](http://nand2tetris.org/)
 * [**Alloy**: _The Same-Origin Policy_](http://aosabook.org/en/500L/the-same-origin-policy.html)
+* [**C**: _Build an 8-bit computer from Scratch_](https://eater.net/8bit)
 * [**C**: _How to Write a Video Player in Less Than 1000 Lines_](http://dranger.com/ffmpeg/ffmpeg.html)
 * [**C**: _Learn how to write a hash table in C_](https://github.com/jamesroutley/write-a-hash-table)
 * [**C**: _The very basics of a terminal emulator_](https://www.uninformativ.de/blog/postings/2018-02-24/0/POSTING-en.html)
@@ -455,6 +464,7 @@ It's a great way to learn.
 * [**PHP**: _Code a Web Search Engine in PHP_](https://boyter.org/2013/01/code-for-a-search-engine-in-php-part-1/)
 * [**Python**: _Build a Deep Learning Library_](https://www.youtube.com/watch?v=o64FV-ez6Gw) [video]
 * [**Python**: _How to Build a Kick-Ass Mobile Document Scanner in Just 5 Minutes_](https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/)
+* [**Python**: _How to build your first error-correction code in vanilla Python][(http://aosabook.org/en/500L/a-continuous-integration-system.html](https://quantum-for-the-confused.medium.com/building-your-first-error-correction-code-in-python-4c1da6d56876))
 * [**Python**: _Continuous Integration System_](http://aosabook.org/en/500L/a-continuous-integration-system.html)
 * [**Python**: _Recommender Systems in Python: Beginner Tutorial_](https://www.datacamp.com/community/tutorials/recommender-systems-python)
 * [**Python**: _Write SMS-spam detector with Scikit-learn_](https://medium.com/@kopilov.vlad/detect-sms-spam-in-kaggle-with-scikit-learn-5f6afa7a3ca2)
@@ -464,12 +474,14 @@ It's a great way to learn.
 * [**Python**: _Learn ML Algorithms by coding: Decision Trees_](https://lethalbrains.com/learn-ml-algorithms-by-coding-decision-trees-439ac503c9a4)
 * [**Python**: _JSON Decoding Algorithm_](https://github.com/cheery/json-algorithm)
 * [**Python**: _Build your own Git plugin with python_](https://joshburns-xyz.vercel.app/posts/build-your-own-git-plugin)
+* [**Python**: _Windowing Systems by Example_](https://jmarlin.github.io/wsbe/)
 * [**Ruby**: _A Pedometer in the Real World_](http://aosabook.org/en/500L/a-pedometer-in-the-real-world.html)
 * [**Ruby**: _Creating a Linux Desktop application with Ruby_](https://iridakos.com/tutorials/2018/01/25/creating-a-gtk-todo-application-with-ruby)
 * [**Rust**: _Building a DNS server in Rust_](https://github.com/EmilHernvall/dnsguide/blob/master/README.md)
 * [**Rust**: _Writing Scalable Chat Service from Scratch_](https://nbaksalyar.github.io/2015/07/10/writing-chat-in-rust.html)
 * [**Rust**: _WebGL + Rust: Basic Water Tutorial_](https://www.chinedufn.com/3d-webgl-basic-water-tutorial/)
 * [**TypeScript**: _Tiny Package Manager: Learns how npm or Yarn works_](https://github.com/g-plane/tiny-package-manager)
+* [**React Native**: Build your own TV app ](https://github.com/AmazonAppDev/react-native-multi-tv-app-sample)
 
 ## Contribute 
 * Submissions welcome, just send a PR, or [create an issue](https://github.com/codecrafters-io/build-your-own-x/issues/new)