fix: correct contributing link in pr template

Author: Sitlintac

.github/pull_request_template.md

@@ -7,7 +7,7 @@
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to change)
-- [ ] I have read the **[CONTRIBUTING](../CONTRIBUTING.md)** document
+- [ ] I have read the **[CONTRIBUTING](../blob/main/CONTRIBUTING.md)** document
 - [ ] My code follows the code style of this project (`npm run lint` produces no warnings/errors)
 - [ ] Any required documentation has been added
 - [ ] I have added tests to cover my changes