Update container.mdx for clarity about ZMK repo folder location (zmkf…

…irmware#2868)

docs/docs/development/local-toolchain/setup/container.mdx

@@ -8,9 +8,9 @@ import TabItem from "@theme/TabItem";
 
 ## Source Code
 
-First, you'll need to clone the ZMK source repository if you haven't already.
-Open a terminal and navigate to the folder you would like to place your `zmk`
-directory in, then run the following command:
+First, you'll need to clone the ZMK source repository into your local file system if you haven't already.
+Open a terminal and navigate to the folder on your local machine where you would like to place your `zmk`
+directory, then run the following command:
 
 ```sh
 git clone https://github.com/zmkfirmware/zmk.git