docs: add link template

Signed-off-by: Kotaro Yoshimoto <[email protected]>

.github/workflows/add-word.yaml

@@ -44,6 +44,9 @@ jobs:
           commit-message: "feat(words): add ${{ inputs.word }}"
           body: |
             TODO: Update this comment and add some reference links.
+            your usage of the word: [link of github or something]()
+            The documentation for the word: [link for word documentation]()
+            
             > [!NOTE]
             > To get approval, you need to show external documentation proving that the word is not your own creation, but is common in the public and industry.
             > Please check [CONTRIBUTING.md](https://github.com/tier4/autoware-spell-check-dict/blob/main/CONTRIBUTING.md) for detail.