switch from -p to --bin

doc/installing-from-source.md

@@ -41,7 +41,7 @@ qmdl_store_path = "./qmdl"
 port = 8080
 debug_mode = true
 EOF
-cargo run -p rayhunter-daemon -- ./config.toml
+cargo run --bin rayhunter-daemon -- ./config.toml
 ```
 
 Open `http://127.0.0.1:8080`.
@@ -110,4 +110,4 @@ If your hot reloading does not work, some have success using polling to detect c
 server: {
     watch: { usePolling: true }
 }
-```
+```