Added usage

docs/use.rst

@@ -2,3 +2,53 @@ Use Domain Discovery Tool
 =========================
 
 Now you should be able to head to http://localhost:8084/ to interact with the tool.
+
+Add Domain
+----------
+
+Domain maintains context of domain discovery. 
+
+.. image:: add_domain.png
+   :width: 600px
+   :align: center
+   :height: 300px
+   :alt: alternate text
+
+Once domain is added click on it to collect and annotate data.
+
+Domain Discovery
+----------------
+
+.. image:: query_web.png
+   :width: 600px
+   :align: center
+   :height: 300px
+   :alt: alternate text
+
+Data Loading
+~~~~~~~~~~~~
+
+WEB: Keyword search on google or bing. For example, “ebola symptoms”   
+LOAD: Upload a list of urls in the text box or upload a file with a list of urls
+SEEDFINDER: Triggers automated keyword search on google and bing and collect seed urls. This requires a domain model.
+
+Filtering
+~~~~~~~~~
+
+QUERIES: Filter by keyword web searches 
+TAGS: Filter by annotation tags
+MODEL: Filter by predicted model tags
+SEARCH: Search by keywords within the downloaded text
+
+Annotation
+~~~~~~~~~~
+
+Currently pages can be annotated as Relevant, Irrelevant or Neutral. Annotations are used to build a domain model.
+
+Domain Model
+~~~~~~~~~~~~
+
+The accuracy of the domain model is displayed on the top right corner. It provides an indication of the model coverage of the domain and how it is influenced by annotations.
+
+
+