Rollback an incorrect rename

Author: traut

detection_rules/devtools.py

@@ -566,7 +566,7 @@ def elastic_pkg(*args):
 
     ## Checklist
 
-    - [x] I have reviewed [tips for building integrations](https://github.com/elastic/integrations/blob/master/docs-dev/tips_for_building_integrations.md) and this pull request is aligned with them.
+    - [x] I have reviewed [tips for building integrations](https://github.com/elastic/integrations/blob/master/docs/tips_for_building_integrations.md) and this pull request is aligned with them.
     - [ ] ~I have verified that all data streams collect metrics or logs.~
     - [x] I have added an entry to my package's `changelog.yml` file.
     - [x] If I'm introducing a new feature, I have modified the Kibana version constraint in my package's `manifest.yml` file to point to the latest Elastic stack release (e.g. `^7.13.0`).