Update ISSUE_TEMPLATE.md (#1509)

* Update ISSUE_TEMPLATE.md

Put the extensions/repo information more front and center in the template.

* Update ISSUE_TEMPLATE.md

.github/ISSUE_TEMPLATE.md

@@ -1,5 +1,7 @@
-**Please fill out this form and remove the first two lines before posting.**
-**If your issue is a request for a catalogue it belongs here https://github.com/inorichi/tachiyomi-extensions/**
+**DO NOT OPEN ISSUES/REQUESTS RELATING TO EXTENSIONS/CATALOGUES IN THIS REPOSITORY. Open them at the following repository  https://github.com/inorichi/tachiyomi-extensions/**
+
+**For all other requests Please fill out the form below and remove the first 3 lines of this template**
+
 **App version:**
 
 **Issue/Request:**
@@ -10,4 +12,4 @@
  2.
  3.
 
-**Other details:**
+**Other details:**