Docusarus: Init Project

Summary:
This starts us transitioning the Yoga website off of an ancient version of Gatsby by initializing a new Docusaurus project. This commit adds a new stock project, to be filled in later, then fixes license lint errors.

Note that this seems to have init'd using npm, but in the next diff I convert this to yarn workspaces anyway.

Differential Revision: D46884434

fbshipit-source-id: 26e2ecba057ae99c4ef878e4cd21c8d21a25c2b5

website-next/.docusaurus/site-metadata.json

@@ -0,0 +1,34 @@
+{
+  "docusaurusVersion": "2.4.1",
+  "siteVersion": "0.0.0",
+  "pluginVersions": {
+    "docusaurus-plugin-content-docs": {
+      "type": "package",
+      "name": "@docusaurus/plugin-content-docs",
+      "version": "2.4.1"
+    },
+    "docusaurus-plugin-content-blog": {
+      "type": "package",
+      "name": "@docusaurus/plugin-content-blog",
+      "version": "2.4.1"
+    },
+    "docusaurus-plugin-content-pages": {
+      "type": "package",
+      "name": "@docusaurus/plugin-content-pages",
+      "version": "2.4.1"
+    },
+    "docusaurus-plugin-debug": {
+      "type": "package",
+      "name": "@docusaurus/plugin-debug",
+      "version": "2.4.1"
+    },
+    "docusaurus-theme-classic": {
+      "type": "package",
+      "name": "@docusaurus/theme-classic",
+      "version": "2.4.1"
+    },
+    "enable-wasm": {
+      "type": "local"
+    }
+  }
+}