Merge pull request #51 from objectionary/automated-testing

#27 fixed unit testing with rultor

Author: EduardoFernandes1410

.rultor.yml

@@ -17,6 +17,6 @@ release:
       npm install
       npm run fetch-and-build-grammar
       npm run convert-yaml && npm run vscode:prepublish
-      npm run unit-test
+      npm run unit-test -- --silent
       cat ../pat.txt | vsce login eolang
       vsce publish