fix: some of invalid character and command in docs/contributing/pr-checks (#6528)

Author: Msksgm

content/en/docs/contributing/pr-checks.md

@@ -43,8 +43,8 @@ more information.
 ## Style checks
 
 To make sure that contributions follow our [style guide](../style-guide/) we
-have implemented a set of checks that verify style guide rules and fail l if
-they find any issues.
+have implemented a set of checks that verify style guide rules and fail if they
+find any issues.
 
 The following list describes current checks and what you can do to fix related
 errors:
@@ -64,7 +64,7 @@ issues. Run `npm run check:text` again and manually fix the remaining issues.
 This check verifies that
 [standards and consistency for Markdown files are enforced](../style-guide/#markdown-standards).
 
-If any issues are found, run `npm:run format` to fix most issues. For more
+If any issues are found, run `npm run:format` to fix most issues. For more
 complex issues, run `npm run check:markdown` and apply the suggested changes.
 
 ### SPELLING check