refactor: explain what we are linting

Author: iBotPeaches

.github/workflows/linting.yml

@@ -2,13 +2,13 @@ name: sourcetoad/aws-codedeploy-action
 on: push
 
 jobs:
-  lint:
+  bash-lint:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v1
 
-      - name: Run Shellcheck
+      - name: Lint Bash
         uses: azohra/shell-linter@latest
         with:
           path: '*.sh'