docs: updated dev setup

docs/contributing/dev-setup.rst

@@ -52,6 +52,7 b' run::'
 Followed by::
 
    nix-channel --update
+   nix-env -i nix-2.0.4
 
 
 Install required binaries
@@ -88,8 +89,8 b' you have it installed before continuing.'
 To obtain the required sources, use the following commands::
 
     mkdir rhodecode-develop && cd rhodecode-develop
-    hg clone https://code.rhodecode.com/rhodecode-enterprise-ce
-    hg clone https://code.rhodecode.com/rhodecode-vcsserver
+    hg clone -u default https://code.rhodecode.com/rhodecode-enterprise-ce
+    hg clone -u default https://code.rhodecode.com/rhodecode-vcsserver
 
 .. note::
 
@@ -105,11 +106,15 b' need to install the following.'
 
 required libraries::
 
+    # svn related
     sudo apt-get install libapr1-dev libaprutil1-dev
     sudo apt-get install libsvn-dev
+    # libcurl required too
+    sudo apt-get install libcurl4-openssl-dev
+    # mysql/pg server for development, optional
     sudo apt-get install mysql-server libmysqlclient-dev
     sudo apt-get install postgresql postgresql-contrib libpq-dev
-    sudo apt-get install libcurl4-openssl-dev
+
 
 
 Enter the Development Shell
@@ -194,7 +199,7 b" To use the application's frontend and pr"
 you will need to compile the CSS and JavaScript with Grunt.
 This is easily done from within the nix-shell using the following command::
 
-    grunt
+    make web-build
 
 When developing new features you will need to recompile following any
 changes made to the CSS or JavaScript files when developing the code::