Updating-ReadTheDocs-Autosubmit-documentation.md

 ## Introduction
-https://autosubmit.readthedocs.io/en/master/
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+Autosubmit [user guide and documentation](https://autosubmit.readthedocs.io/en/master/) is currently hosted in ReadTheDocs.io platform, The documentation is compiled after new sections and updates are pushed to the master branch.
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+The source code for the user guide is located in the following location of the Autosubmit source code tree:
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+`autosubmit/docs/source/database`
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+All user guides and technical aspects of the application that concerns usage, development and deployment are described there.
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+
 ## Adding/updating a section
 
 ## Generating and deploying a new version
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