adding docs subtree

docs/assets/github.css

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+/*
+
+github.com style (c) Vasily Polovnyov <vast@whiteants.net>
+
+*/
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
+  color: #333;
+  background: #f8f8f8;
+}
+
+.hljs-comment,
+.hljs-quote {
+  color: #998;
+  font-style: italic;
+}
+
+.hljs-keyword,
+.hljs-selector-tag,
+.hljs-subst {
+  color: #333;
+  font-weight: bold;
+}
+
+.hljs-number,
+.hljs-literal,
+.hljs-variable,
+.hljs-template-variable,
+.hljs-tag .hljs-attr {
+  color: #008080;
+}
+
+.hljs-string,
+.hljs-doctag {
+  color: #d14;
+}
+
+.hljs-title,
+.hljs-section,
+.hljs-selector-id {
+  color: #900;
+  font-weight: bold;
+}
+
+.hljs-subst {
+  font-weight: normal;
+}
+
+.hljs-type,
+.hljs-class .hljs-title {
+  color: #458;
+  font-weight: bold;
+}
+
+.hljs-tag,
+.hljs-name,
+.hljs-attribute {
+  color: #000080;
+  font-weight: normal;
+}
+
+.hljs-regexp,
+.hljs-link {
+  color: #009926;
+}
+
+.hljs-symbol,
+.hljs-bullet {
+  color: #990073;
+}
+
+.hljs-built_in,
+.hljs-builtin-name {
+  color: #0086b3;
+}
+
+.hljs-meta {
+  color: #999;
+  font-weight: bold;
+}
+
+.hljs-deletion {
+  background: #fdd;
+}
+
+.hljs-addition {
+  background: #dfd;
+}
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}

docs/assets/shared.css

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+html {
+  box-sizing: border-box;
+}
+*,
+*:before,
+*:after {
+  box-sizing: inherit;
+}
+
+body {
+  background-color: #f3f2f1;
+  background-image: url(data:image/svg+xml;base64,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);
+  background-attachment: fixed;
+  background-position: 50% 50%;
+  background-repeat: no-repeat;
+  background-size: 900px 740px;
+}
+
+.Container {
+  justify-content: center;
+  padding: 20px 0;
+  max-width: 1040px;
+  margin: 0 auto;
+}
+
+.Tiles {
+  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  grid-gap: 20px;
+  display: grid;
+  list-style-type: none;
+  margin: 0;
+  padding: 0;
+}
+
+.Tile {
+  background-color: white;
+  border-radius: 2px;
+  box-shadow: 0 3.2px 7.2px 0 rgba(0, 0, 0, 0.132), 0 0.6px 1.8px 0 rgba(0, 0, 0, 0.108);
+  opacity: 0.96;
+  transition: all 0.15s linear;
+}
+
+.Tile:not(.Tile--intro):hover {
+  box-shadow: 0 6.4px 14.4px 0 rgba(0, 0, 0, 0.132), 0 1.2px 3.6px 0 rgba(0, 0, 0, 0.108);
+  opacity: 1;
+}
+
+.Tile-link {
+  align-items: center;
+  color: #323130;
+  display: flex;
+  flex-direction: column;
+  height: 148px;
+  justify-content: center;
+  text-align: center;
+  text-decoration: none;
+}
+
+.Tile-link i {
+  font-size: 32px;
+  margin-bottom: 12px;
+  color: #605e5c;
+}
+
+.Tile--intro {
+  grid-column: span 2;
+  padding: 20px;
+}
+
+.Tile--intro h1 {
+  font-size: 24px;
+  font-weight: 300;
+  margin: 8px 0;
+  padding: 0;
+}
+
+.Tile--intro p {
+  font-size: 14px;
+  margin: 0;
+}
+
+.Tile--intro a,
+.Tile--intro a:visited {
+  color: #0078d4;
+}

docs/assets/step.css

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+@import url(https://static2.sharepointonline.com/files/fabric/office-ui-fabric-core/9.6.1/css/fabric.min.css);
+@import url(./github.css);
+
+body {
+  display: flex;
+  margin: 0;
+  padding: 0;
+}
+
+#app {
+  flex: 1;
+  padding: 50px;
+}
+
+#markdownReadme {
+  flex: 1;
+  background: #efefef;
+  padding: 50px;
+  margin: 0 auto;
+}
+
+pre {
+  padding: 15px;
+  border: 1px #999 solid;
+  border-radius: 2px;
+  background-color: white;
+  margin: 15px 0;
+}