chore(docs): add proper directory for docs deploy (#1108)

* add proper directory

* add workflow dispatch

.github/workflows/deploy.yaml

@@ -1,6 +1,7 @@
 name: Deploy to GitHub Pages
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - master
@@ -23,8 +24,10 @@ jobs:
 
       - name: Install dependencies
         run: yarn install --frozen-lockfile
+        working-directory: ./docs
       - name: Build website
         run: yarn build
+        working-directory: ./docs
 
       # Popular action to deploy to GitHub Pages:
       # Docs: https://github.com/peaceiris/actions-gh-pages#%EF%B8%8F-docusaurus
@@ -33,7 +36,7 @@ jobs:
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           # Build output to publish to the `gh-pages` branch:
-          publish_dir: ./build
+          publish_dir: ./docs/build
           # The following lines assign commit authorship to the official
           # GH-Actions bot for deploys to `gh-pages` branch:
           # https://github.com/actions/checkout/issues/13#issuecomment-724415212