Update issue templates

Author: bnasslahsen

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,6 +7,9 @@ assignees: ''
 
 ---
 
+If you ❤️ this project consider becoming a [sponsor](https://github.com/sponsors/springdoc).
+If you already use the `springdoc-openapi`, please do not forget adding a ***github star*** to this repository.
+
 **Describe the bug**
 
 - If you are reporting a bug, please help to speed up problem diagnosis by providing as

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,6 +7,9 @@ assignees: ''
 
 ---
 
+If you ❤️ this project consider becoming a [sponsor](https://github.com/sponsors/springdoc).
+If you already use the `springdoc-openapi`, please do not forget adding a ***github star*** to this repository.
+
 **Is your feature request related to a problem? Please describe.**
 
 - A clear and concise description of what the problem is. Ex. I'm always frustrated