docs: enable blank issue and add url to contact links

Author: bearomorphism

.github/ISSUE_TEMPLATE/config.yml

@@ -1,6 +1,7 @@
 # Configuration: https://help.github.com/en/github/building-a-strong-community/configuring-issue-templates-for-your-repository
 
-blank_issues_enabled: false
+blank_issues_enabled: true
 contact_links:
   - name: Security Contact
+    url: https://github.com/woile
     about: Please report security vulnerabilities to [email protected]