Update docs to v2 (#278)

* Update docs to v2

* Bump checkout action to v3

* Update installer scripts

* Replace v2 to vX on the docs, minor fixes

* Remove extra whitespace

.github/workflows/check-dist.yml

@@ -21,12 +21,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set Node.js 16
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v3
         with:
           node-version: 16.x
+          cache: npm
 
       - name: Install dependencies
         run: npm ci
@@ -44,7 +45,7 @@ jobs:
         id: diff
 
       # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         if: ${{ failure() && steps.diff.conclusion == 'failure' }}
         with:
           name: dist