Add contact link for issue type guidance

Author: norberttech

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: false
 contact_links:
+  - name: Which issue type should I use?
+    url: https://flow-php.com/documentation/contributing/
+    about: Find out which issue type is best for your case 
   - name: Discord Community Support
     url: https://discord.gg/5dNXfQyACW
     about: The fastest way to get answer to your questions
@@ -8,4 +11,4 @@ contact_links:
     about: Project Documentation
   - name: Project Roadmap
     url: https://github.com/orgs/flow-php/projects/1
-    about: Project Roadmap - please check if given issue is not already there
+    about: Project Roadmap - please check if given issue is not already there