[doc][README] Update content for new setup

doc/README.md

 # beat.editor
 
-A local editor for BEAT objects, including a graphical toolchain editor and a simple web server. Aims to compliment `beat.cmdline` to enable a productive and smooth workflow for developing objects for the BEAT platform as well as replace the current toolchain editor in `beat.web`.
+A local editor for BEAT objects, including a graphical toolchain editor. It aims
+to compliment `beat.cmdline` to enable a productive and smooth workflow for
+developing objects for the BEAT platform as well as replace the current
+toolchain editor in `beat.web`.
 
 ## Installation
 #### System Requirements
-- Up-to-date version of [Node.js](https://nodejs.org/en/)
-- Up-to-date version of [NPM](https://www.npmjs.com/)
-	- Installed by default alongside Node
+- Up-to-date version of [conda](https://conda.io/miniconda.html)
+- Idiap conda channel configured: ::
 
+    $ conda config --env --add channels https://www.idiap.ch/software/beat/conda
 
-To install, just run `npm install`.
+To install, just run `conda install beat.editor`.
 
 ### Use
 
 **TBD**
 
 ### Development
-> See `DEV.md`
+> See `contribute`