fix(README): make the MAC OS X path more clear

README.md

@@ -34,7 +34,7 @@ git clone https://github.com/LN-Zap/zap-desktop.git
 After the repo is cloned, paste the path to your cert in app/lnd/config/index.js:
 ```bash
 // Cert will be located depending on your machine
-// Mac OS X: /Users/user/Library/Application Support/Lnd/tls.cert
+// Mac OS X: /Users/{your_user_name}/Library/Application Support/Lnd/tls.cert
 // Linux: ~/.lnd/tls.cert
 // Windows: TODO find out where cert is located for windows machine
 export default {