Merge pull request codecov#566 from codecov/drazisil-codecov-patch-2

chore: rename extensions to correct links

CONTRIBUTING.md

@@ -1,9 +1,9 @@
 # Adding a new CI provider
 
-1. View https://github.com/codecov/uploader/blob/master/src/ci_providers/provider_template.js
-2. Collect the needed enviromental variables for each section (you can use provider_circleci.js if you get confused)
-3. Copy provider_template.js and fill it in.
-4. Add your new providers list in https://github.com/codecov/uploader/blob/master/src/ci_providers/index.js
+1. View https://github.com/codecov/uploader/blob/master/src/ci_providers/provider_template.ts
+2. Collect the needed enviromental variables for each section (you can use provider_circleci.ts as an example if you get confused)
+3. Copy provider_template.ts and fill it in.
+4. Add your new providers list in https://github.com/codecov/uploader/blob/master/src/ci_providers/index.ts
 5. Copy test/providers/provider_template.test.js and fill it in.
 6. Ensure 100% code coverage on the new provider code.
 7. Open a PR and we'll take a look!