added comments

.github/scripts/check-apps.sh

@@ -1,13 +1,11 @@
 #!/bin/bash
 
-set -e
+set -e   # Exit immediately if any command fails
 
-# Trim quotes in case any were introduced.
+# # Clean up TARGETS: remove quotes and extra spaces
 TARGETS=$(echo ${TARGETS} | tr -d '"' | awk '{$1=$1};1')
 
-# Override the max runtime for specific apps. This is useful for apps
-# that have a longer runtime on cold cache, but perform well when it's
-# warm. Should add exceptions sparingly.
+#  List of apps that need custom max render times (slow on cold cache)
 declare -A runtime_exceptions
 runtime_exceptions["apps/cltlightrail"]="2s"
 runtime_exceptions["apps/milbscores"]="15s"
@@ -20,21 +18,28 @@ runtime_exceptions["apps/ncaawstandings"]="5s"
 runtime_exceptions["apps/nflstandings"]="5s"
 runtime_exceptions["apps/nhlstandings"]="5s"
 
+# If TARGETS is empty, nothing to check
 if [ -z "${TARGETS}" ]; then
     echo "✔️ No apps modified"
     exit 0
 fi
 
+# Loop through each target app
 for target in ${TARGETS}; do
+
+# Skip if the app folder no longer exists (deleted)
     if [[ ! -d "$target" ]]; then
 	# app was deleted
 	continue
     fi
 
+ # If the app has a custom runtime exception, use it
     if [ ${runtime_exceptions[$target]} ]; then
 	t=${runtime_exceptions[$target]}
 	echo "pixlet check --max-render-time ${t} ${target}"
 	pixlet check --max-render-time ${t} ${target}
+
+ # Otherwise use the default pixlet check
     else
 	echo "pixlet check ${target}"
 	pixlet check ${target}