Switch to Yarn 1 (#317)

* Switch to Yarn 1
Fixes #315

* fix: try ignoring the particular error that seems to be caused by the newest version of vuepress

* chore: ignore duplicate id outbound-link-title error

Author: katelynsills

.github/workflows/build-deploy-doc.yml

@@ -14,8 +14,8 @@ jobs:
 
     - name: Install and Build
       run: |
-        npm install
-        npm run docs:build
+        yarn install
+        yarn docs:build
 
     - name: Deploy to gh-pages
       uses: JamesIves/github-pages-deploy-action@releases/v3

.github/workflows/test-build.yml

@@ -17,11 +17,12 @@ jobs:
 
     - name: Install and Build
       run: |
-        npm install
-        npm run docs:build
+        yarn install
+        yarn docs:build
   
     - name: HTML5 Validator
       uses: Cyb3r-Jak3/html5validator-action@master
       with:
         root: main/.vuepress/dist
+        extra: --ignore_re r'\ADuplicate ID "outbound-link-title".*'