Update README.rst

README.rst

@@ -76,7 +76,9 @@ Create a new environment for treex
 
 ::
 
-   conda create -n treex -y python>=3.6
+  conda create -n treex -c mosaic treex
+
+This command will create the environment and also install the sources.
 
 Activate the environment
 ------------------------
@@ -92,13 +94,6 @@ exit the environment, enter:
 
    source deactivate
 
-Install treex
--------------
-
-::
-
-   conda install -c mosaic treex
-
 Developer procedure
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