feat: new website for htmlhint.com (#395)

* docs: new website for docs

* fixes

Author: thedaviddias

.gitignore

@@ -62,3 +62,7 @@ yarn.lock
 
 test/unit/coverage
 test/e2e/reports
+
+/website/node_modules
+/website/build
+/website/.docusaurus

.prettierignore

@@ -17,3 +17,8 @@ test/html
 
 # Ignore formatting of ***x*** to **_x_**
 .github/PULL_REQUEST_TEMPLATE.md
+
+/website/playground
+/website/.docusaurus
+/website/plugins
+/website/static