feat(docs): add private key extension guide (#1291)

Author: nikerzetic-aflabs

.github/workflows/lint-sentence-newline.yml

@@ -37,8 +37,8 @@ jobs:
 
       - name: Install dependencies
         if: steps.changed-files.outputs.any_changed == 'true'
-        run: npm ci
+        run: npm ci --include=dev
 
       - name: Run sentence newline lint
         if: steps.changed-files.outputs.any_changed == 'true'
-        run: npx textlint ${{ steps.changed-files.outputs.all_changed_files }}
+        run: npx textlint --config .textlintrc.json ${{ steps.changed-files.outputs.all_changed_files }}

.textlintrc.json

@@ -2,6 +2,11 @@
   "plugins": {
     "mdx": true
   },
+  "filters": {
+    "allowlist": {
+      "allow": ["/^:::[a-zA-Z]+\\[[^\\]]*\\][\\s\\S]*?^:::\\s*$/gm"]
+    }
+  },
   "rules": {
     "one-sentence-per-line": true
   }