trying to solve exit code 1

.github/workflows/hero-check.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Check Submission
         id: check_sub
         run: >-
-          SUBMISSION=`diff target/open-source-heroes.md source/open-source-heroes.md | awk '/\* @${{github.actor}}/{ print $4 }'`;
+          SUBMISSION=`(diff target/open-source-heroes.md source/open-source-heroes.md || true) | awk '/\* @${{github.actor}}/{ print $4 }'`;
           CHECK=`echo -n "${{github.actor}}-${{secrets.SALT}}" | openssl dgst -${{secrets.ALGO}} | awk '/[a-z0-9]+/{ print $2 }'`;
           echo "Confirming submission ($SUBMISSION) equals check ($CHECK)...";