check-updates.sh: handle comments in package list

scripts/updates/check-updates.sh

@@ -29,5 +29,5 @@ if [ -f "${BASEDIR}/github-projects.txt" ]; then
 		if [ "$(echo -e "${termux_version}\n${latest_version}" | sort -V | head -n 1)" != "$latest_version" ] ;then
 			echo "Package '${package}' needs update to '${latest_version}'."
 		fi
-	done < "${BASEDIR}/github-projects.txt"
+	done < <(grep -P '^[a-z0-9]' "${BASEDIR}/github-projects.txt")
 fi

scripts/updates/github-projects.txt

@@ -1,3 +1,20 @@
+##
+## A list of package upstreams located on Github which should be
+## checked for updates.
+##
+## Each entry has a following format:
+##
+##   {package name}|{project path on Github}
+##
+## Example: acr|radare/acr
+##
+## Lines starting with "#" are comments.
+##
+## Packages which are known to be problematic, big or just should
+## never be updated must be commented out with appropriate description
+## added.
+##
+
 acr|radare/acr
 antibody|getantibody/antibody
 atomicparsley|wez/atomicparsley