dev: chg: update PR template to include nodes audience check (#641)

* dev: chg: update PR template to include nodes audience check

* dev: chg: better description

* dev: chg: add entry to changes too

.github/pull_request_template.md

@@ -8,11 +8,16 @@ Please provide a detailed description of what was done in this PR
 - [ ] Hotfix (change that solves an urgent issue, and requires immediate attention)
 - [ ] New feature (non-breaking change that adds functionality)
 - [ ] Breaking change (change that is not backwards-compatible and/or changes current functionality)
+- [ ] Changes only for a subset of nodes
 
 # Breaking changes
 
 Please complete this section if any breaking changes have been made, otherwise delete it
 
+# Nodes audience
+
+In case this PR includes changes that must be applied only to a subset of nodes, please specify how you handled it (e.g. by adding a flag with a default value...)
+
 # Checklist
 
 - [ ] I have added at least 2 reviewer or the whole pos-v1 team
@@ -41,4 +46,4 @@ Please complete this section with the steps you performed if you ran manual test
 
 # Additional comments
 
-Please post additional comments in this section if you have them, otherwise delete it
+Please post additional comments in this section if you have them, otherwise delete it