chore: consolidate StackOverflow docker tags (#2538)

remove end of sentence punctuation

Author: MikeMcC399

.github/ISSUE_TEMPLATE/config.yml

@@ -2,10 +2,10 @@ blank_issues_enabled: false
 contact_links:
   - name: Need help with Node.js?
     url: https://github.com/nodejs/help
-    about: Please file an issue in our help repo.
+    about: Please file an issue in our help repo
   - name: Found a problem with Node.js beyond the API reference documentation?
     url: https://github.com/nodejs/nodejs.org/issues/new/choose
-    about: Please file an issue in the Node.js website repository.
+    about: Please file an issue in the Node.js website repository
   - name: Need help with common questions related to using Node.js with Docker?
-    url: https://stackoverflow.com/questions/tagged/node.js%2bdocker%2bdockerfile
-    about: Please visit Stack Overflow to explore related questions and answers.
+    url: https://stackoverflow.com/questions/tagged/node.js%2bdocker
+    about: Please visit Stack Overflow to explore related questions and answers