Update README.md

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README.md

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 The IGV-Web app is a pure-client "genome browser" application based on [igv.js](https://github.com/igvteam/igv.js).  It is developed by the [Integrative Genomics Viewer (IGV)](https://igv.org) team. You can use our hosted app at https://igv.org/app, or follow the directions to install your own.
 
-Note:  the instructions below are **for developers or others wishing to install a copy of the IGV-Web app.**  For documentation about _using the app_, see [https://igv.org/doc/webapp/](https://igv.org/doc/webapp/). A link to the user documentation is also provided in the app's Help menu.
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 ## Supported Browsers
 
 The IGV-Web app and igv.js require a modern web browser with support for JavaScript ECMAScript 2015.
 
+## Using IGV-Web
+
+For documentation about using the app, see [https://igv.org/doc/webapp/](https://igv.org/doc/webapp/). A link to the user documentation is also provided in the app's Help menu.
+
 ## Hosting your own IGV-Web app
 
-See the documentation at [https://igv.org/doc/webapp/#Hosting/](https://igv.org/doc/webapp/#Hosting/)
+For documentation about hosting your own IGV-Web, see [https://igv.org/doc/webapp/#Hosting/](https://igv.org/doc/webapp/#Hosting/)
 
 
 ## License