Update README.md

Author: yangr0

README.md

@@ -20,7 +20,7 @@ RVuln is multi-threaded vulnerability scanner written in Rust
 
 - Ubuntu/Debian based OS
 
-- Arch linux based OS
+- Arch Linux based OS
 
 - Windows 10
 
@@ -39,6 +39,6 @@ A quick and easy documentation [here](https://github.com/iinc0gnit0/RVuln/blob/m
 
 `git pull`
 
-You will need to recompile if there's an update availability
+You will need to recompile if there's an update availabile
 
 ### Made with ❤ by [inc0gnit0](https://github.com/iinc0gnit0) | [skript0r](https://github.com/green0ctagon) | [p4yl0ad](https://github.com/p4yl0ad)