Making template more simpler

Signed-off-by: rishi-source <f20221683@pilani.bits-pilani.ac.in>

Author: Rishi-source

.github/PULL_REQUEST_TEMPLATE.md

@@ -12,7 +12,7 @@ Make sure these boxes are checked before your pull request (PR) is ready to be r
 
 <!-- Tell us what you've changed and why. -->
 
-Fixes #(issue number)
+Fixes #0000
 
 ## What kind of change is this?