Add missing copy of rc_shared, as well as some comments.

rc_shared.sh

@@ -106,6 +106,7 @@ function update-shared-old {
 
 PROJECT_SHARED="$HOME/.git-env-shared"
 function update-shared2 {
+	# Refresh the local env-shared repo.
 	if [[ -d $shared ]]; then
   		log "`date` - Updating '$PROJECT_SHARED'.\n"
 		git -C "$PROJECT_SHARED" switch "$branch"
@@ -117,6 +118,10 @@ function update-shared2 {
 				"$PROJECT_SHARED" --branch=$branch
 	fi
 
+	# Tha main piece! Reload the shared RC file.
+   cp -v "$PROJECT_SHARED"/rc_shared.sh ~/.rc_shared
+
+	# Copy the scripts from the shared bin to the home bin.
 	local_bin="$HOME/bin"
 	remote_bin="$PROJECT_SHARED/bin-shared"
 	if [[ -d "$local_bin" ]]; then