update readme

README.md

@@ -1,15 +1,22 @@
 # Sync SSH Keys
+
 A simple script to sync ssh public keys to multiple servers, without the danger of locking yourself out (since it writes to `authorized_keys2`)
 
+
 ## Setup
 
 ### Install dependencies
+
 ```bash
 pip3 install -r requirements.txt
 ```
 
+
 ### Create configuration file
+
 Rename `config-example.yaml` to `config.yaml` and set your own data.
 
+
 ## Usage
+
 Run `./sync.py` or `python3 sync.py`