Update readme.md

SnowMarble · web-flow · commit 86cb3211a586 · 2022-08-30T20:25:23.000+09:00
diff --git a/readme.md b/readme.md
@@ -5,6 +5,3 @@ https://dimipay-pg-exam.herokuapp.com/
 
 ## docs
 https://dimipay.github.io/pg-examination-server/#/
-
-## postman
-https://www.postman.com/cloudy-comet-299904/workspace/public/collection/15173777-2822aef8-2d5d-4e6f-bb02-e61ebf1d483f?action=share&creator=15173777
