Update support URL and instructions

Author: corneliusyaovi

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,5 @@
 blank_issues_enabled: false
 contact_links:
-  - name: SDK Integration Support
-    url: https://forum.flutterwave.com
-    about: If you're having general trouble with your integration, Kindly contact our support team.
+  - name: Integration Support
+    url: https://flutterwave.com/ng/support/submit-request
+    about: If you need any help using this package, contact our support team.