Add documentation on GH pages (#85)

* Add documentation on GH pages

* Expand classes for doc generation

* Update docs

* .nojekyll

* Update Identicon.tsx

* Update Demo.tsx

* Update KeyPair.tsx

* Export specific icons

* Convert tests to TypeScript

docs/.vuepress/config.js

@@ -0,0 +1,22 @@
+module.exports = {
+  base: '/ui/',
+  title: 'polkadot-js/ui',
+  description: 'UI libraries and utilities in-use accross @polkadot projects',
+  markdown: {
+    lineNumbers: true
+  },
+  themeConfig: {
+    displayAllHeaders: true,
+    lastUpdated: 'Last Updated',
+    nav: [
+      { text: 'GitHub', link: 'https://github.com/polkadot-js/ui' }
+    ],
+    sidebar: [
+      ['/ui-identicon/', '@polkadot/ui-identicon'],
+      ['/ui-keyring/', '@polkadot/ui-keyring'],
+      ['/ui-settings/', '@polkadot/ui-settings'],
+      ['/ui-util/', '@polkadot/ui-util'],
+      '/CONTRIBUTING.md'
+    ]
+  }
+};

docs/.vuepress/styles/palette.styl

@@ -0,0 +1 @@
+$accentColor = #fd8824