update template texts

.gitlab/issue_templates/BUG.md

@@ -1,23 +1,23 @@
-# Bug report
+## Bug report
 
-* [ ] Did you check if there wasn't a similar bug report or PR open to fix similar bug?
-* [ ] Are you using the [latest version](https://framagit.org/dystopia-project/simple-email/tags) of the app?
+* [ ] I checked if there wasn't a similar bug report or PR open to fix a similar bug
+* [ ] I'm using the [latest version](https://framagit.org/dystopia-project/simple-email/tags) of the app?
 
 -------------------------------------------
 
-## Expected behavior
+### Expected behavior
 
 
-## Actual behavior
+### Actual behavior
 
 
-## Steps to reproduce the problem
+### Steps to reproduce the problem
 
 1.
 2.
 3.
 
-## Version
+### Version
 
 * App version:
 * Android version:

.gitlab/issue_templates/FEATURE.md

@@ -1,11 +1,11 @@
-# Feature request
+## Feature request
 
-* [ ] Did you check if there wasn't a similar feature request or open a PR with similar feature?
-* [ ] Did you read [this FAQ](https://framagit.org/dystopia-project/simple-email/blob/master/docs/FAQ.md#can-you-add-)?
+* [ ] I checked if there wasn't a similar feature request or open a PR with similar feature
+* [ ] I read [this FAQ](https://framagit.org/dystopia-project/simple-email/blob/master/docs/FAQ.md#can-you-add-)
 
 -------------------------------------------
 
-## Expected behavior
+### Expected behavior
 
 
-## Actual behavior
+### Actual behavior

.gitlab/merge_request_templates/PULL REQUEST.md

@@ -1,4 +1,4 @@
-### Comments/Description:
+## Comments/Description:
 
 Thank you for taking the time to submit your changes to SimpleEmail and help us
 making it better step by step! :+1: :clap:
@@ -9,7 +9,7 @@ Thank you for contributing.
 
 -------------------------------------------
 
-# Important
+### Important
 
 * [ ] Added description to PR
 * [ ] Linked issue ticket(s) to PR