fix(docs): installation instructions source shell

Author: imstevenpmwork

docs/source/installation.mdx

@@ -15,20 +15,14 @@ conda create -y -n lerobot python=3.10
 
 Now restart the shell by running:
 <hfoptions id="shell_restart">
-<hfoption id="Windows">
+<hfoption id="Linux">
 
 ```bash
 source ~/.bashrc
 ```
 </hfoption>
 <hfoption id="Mac">
 
-```bash
-source ~/.bash_profile
-```
-</hfoption>
-<hfoption id="zshell">
-
 ```bash
 source ~/.zshrc
 ```