Replace regex for retrieving latest version

Author: TomBaxter

README.md

@@ -150,7 +150,7 @@ sudo eopkg install lazygit
 ### Ubuntu
 
 ```sh
-LAZYGIT_VERSION=$(curl -s "https://api.github.com/repos/jesseduffield/lazygit/releases/latest" | grep -Po '"tag_name": "v\K[0-35.]+')
+LAZYGIT_VERSION=$(curl -s "https://api.github.com/repos/jesseduffield/lazygit/releases/latest" | grep '"tag_name":' |  sed -E 's/.*"v*([^"]+)".*/\1/')
 ```
 
 ```sh