Update README.md

README.md

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 # Tripal JBrowse
-This module provides integration between Drupal/Tripal sites and pre-existing GMOD Jbrowse instances. This is done through creation of a "Jbrowse Instance" content type in Tripal that provides form elements for describing the JBrowse instance you want to display. The specified instance is then given it's own page/url and displayed within an iFrame. Functionality is provided to allow the start location and tracks to be displayed for each Jbrowse instance described.
+This module provides integration between Drupal/Tripal sites and pre-existing GMOD Jbrowse instances. 
+
+## Dependencies
+* [Link Field](https://www.drupal.org/project/link)
+
+## Installation
+1. First install the link module.
+2. Then install this module as you would any other Drupal module ([Drupal Documentation](https://www.drupal.org/documentation/install/modules-themes/modules-7))
+
+##Functionality
+This module creates a "JBrowse Instance" content type with fields (uses the Drupal Field API) for specifying the URL of the pre-existing JBrowse instance, the start location and the tracks to display by default. There is extensive documentation in the add/edit.
+![Screenshot of Add/Edit Form](https://github.com/UofS-Pulse-Binfo/tripal_jbrowse/blob/7.x-2.1.x/theme/images/tripal_jbrowse.edit_form.screenshot.png)
+
+This allows you to create a page for each JBrowse Instance you want to embed in your site. You can use the Drupal "URL path alias" settings on the add/edit form to provide a friendly URL and theme it the same way you would any other node page.
+![Screenshot of JBrowse Instance Page](https://github.com/UofS-Pulse-Binfo/tripal_jbrowse/blob/7.x-2.1.x/theme/images/tripal_jbrowse.page.screenshot.png)
+