Round mean values calculated during data analysis

Closes #201 (closed)

docs/get_started/index.md

 # Get started
 
-To use DAN in your own environment, you need to first clone with its submodules via:
+To use DAN in your own environment, you need to first clone via:
 
 ```shell
-git clone --recurse-submodules git@gitlab.teklia.com:atr/dan.git
-```
-
-If you forgot the `--recurse-submodules`, you can initialize the submodule using:
-
-```shell
-git submodule update --init
+git clone git@gitlab.teklia.com:atr/dan.git
 ```
 
 Then you can install it via pip: