Markdown linter

Author: sbernauer

.github/ISSUE_TEMPLATE/pre-release-upgrade-testing.md

@@ -109,7 +109,7 @@ the operators and CRDS.
 stackablectl demo install <DEMO_NAME>
 
 # For stack testing, install stack via
-stackablectl stack install <STACK_NAME> 
+stackablectl stack install <STACK_NAME>
 
 # --- IMPORTANT ---
 # Run through the (still) nightly demo/stack instructions (refer to the list above).

.github/ISSUE_TEMPLATE/release-from-scratch-testing.md

@@ -109,7 +109,7 @@ These instructions are for deploying and completing the YY.M.X demo from scratch
 stackablectl demo install <DEMO_NAME>
 
 # For stack testing, install stack via
-stackablectl stack install <STACK_NAME> 
+stackablectl stack install <STACK_NAME>
 
 # --- IMPORTANT ---
 # Run through the (still) nightly demo/stack instructions (refer to the list above).