Update README.md with | tee ./coverage.txt (#69)

Update README.md with `| tee ./coverage.txt`

README.md

@@ -221,7 +221,7 @@ The nice thing, is that will link all your files inside that commit and ability
 ```yaml
 - name: Run tests
   run: |
-    npx jest --coverage | tee ./coverage.txt
+    npx jest --coverage | tee ./coverage.txt && exit ${PIPESTATUS[0]}
 
 - name: Jest Coverage Comment
   uses: MishaKav/jest-coverage-comment@main