Add pull request checklist template

Author: SATAIl

pull_request_template.md

@@ -0,0 +1,15 @@
+Checklist before requesting a review
+ I have performed a self-review of my code
+ If it is a core feature, I have added thorough tests
+ Do we need to implement analytics?
+ Will this be part of a product update? If yes, please write one phrase about this update
+Create project for this repository.
+
+Add deploy key with name DEPLOY_KEY to your repository.
+
+Create discord server and add notification when PR was created.
+
+For github actions:
+
+create PAT (Personal Access Token) with Full control of private repositories and Full control of orgs and teams, read and write org projects
+add to repository actions secrets key with the name PAT and the value of the created PAT