chore: Update README.md example usage (#13)

Signed-off-by: Bryan Hundven <[email protected]>

Author: bhundven

.github/workflows/update-readme.yaml

@@ -55,6 +55,7 @@ jobs:
           echo -ne '  - repo: https://github.com/bhundven/golang-pre-commit.git\n' >&3
           echo -ne "    rev: ${LATEST_VER}\n" >&3
           echo -ne '    hooks:\n' >&3
+          echo -ne '      - id: go-fmt\n' >&3
           echo -ne '```\n\n' >&3
 
           echo -ne "## Available Hooks\n\n" >&3