Started gitbook in docs folder
Change-Id: Ifda129c3202855bba16a7c77e35b4351c9773655
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+_book/
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+# XOS
+
+Welcome to the XOS documentation.
+
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+# Summary
+
+* [Introduction](README.md)
+ - [Contribute to the documentation](contribute_docs.md)
+
diff --git a/docs/contribute_docs.md b/docs/contribute_docs.md
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+# Contribute to the documentation
+
+The XOS documentation is generated using [GitBooks](https://www.gitbook.com) and you can learn more about the GitBooks Toolchain [here](https://toolchain.gitbook.com/)
+
+## View the documentation as a website
+
+If you have [NodeJs](https://nodejs.org/en/) installed in your system, you can easily install the `gitbook-cli` using:
+```
+npm install gitbook-cli -g
+```
+
+and then serve the documentation with:
+```
+gitbook serve
+```
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