added some essential info to the readme

Author: arthtyagi

README.md

@@ -20,7 +20,7 @@ The AGPL license allows the free use of this code-base in other free open-source
 
 ## Setup
 
-* Clone this repository. 
+* Clone a fork of this repository. 
 * Run the migrations.
 * Run this on your localhost.
 
@@ -31,6 +31,11 @@ The variables you should include are the ones with `config()` next to them in th
 
 Once you're done with that, you can start working on fixing the nitty gritty details, make improvements, finding issues and reporting them in the issues tab of this repository. Create PRs and have fun!
 
+
+**Note :You should take note of that if you are working on the fork of this repository, you have to sync it before pushing changes to the fork and making a PR to this repo. How to sync changes made on this repo to your fork? Have a look at [this](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/syncing-a-fork). **
+
+
+
 ## Code Style
 
 * Flake8 is used.