OpenRC service and support for more inits (#368)

Add OpenRC service and support for other init services

Co-authored-by: Jonathan <78560204+wncry@users.noreply.github.com>
Co-authored-by: MadcowOG <null>
Co-authored-by: MadcowOG <88654251+MadcowOG@users.noreply.github.com>

readme.md

@@ -76,7 +76,7 @@ or a terminal emulator (but desktop environments won't start)
 
 Install Ly and the provided systemd service file
 ```
-# make install
+# make install installsystemd
 ```
 
 Enable the service
@@ -90,6 +90,27 @@ disable getty on Ly's tty to prevent "login" from spawning on top of it
 # systemctl disable getty@tty2.service
 ```
 
+### OpenRC
+
+Clone, compile and test.
+
+Install Ly and the provided OpenRC service
+```
+# make install installopenrc
+```
+
+Enable the service
+```
+# rc-update add ly
+```
+
+You can edit which tty Ly will start on by editing the `tty` option in the configuration file.
+
+If you choose a tty that already has a login/getty running (has a basic login prompt), then you have to disable the getty so it doesn't respawn on top of ly
+```
+# rc-update del agetty.tty2
+```
+
 ## Arch Linux Installation
 You can install ly from the [AUR](https://aur.archlinux.org/packages/ly), using yay for example:
 ```