Add 'shell' session sequence to code blocks

README.md

@@ -5,7 +5,7 @@ The page typically says (before it opens) that the applications are not yet open
 
 # Setup
 Go to a directory where you want to install the sniper, and do these commands:
-  ```
+  ```shell
   git clone https://git.kovachev.xyz/kiril/WarwickAccomSniper
   cd WarwickAccomSniper
   python3 -m venv .venv
@@ -18,7 +18,7 @@ After that, the setup should be ready and you should be able to run the scripts.
 The script is currently quite limited, but you can access it through the `cli_sniper.py` entry point.
 
 To wit:
-  ```
+  ```shell
   python cli_sniper.py
 ```