Added Debian Support with .deb file and buildscript

Makefile

@@ -5,6 +5,10 @@ all: build
 build:
 	go build -gcflags='all=-N -l'
 
+.PHONY: makedeb
+makedeb: build
+	scripts/makedeb.sh
+
 .PHONY: install
 install:
 	go install

README.md

@@ -86,6 +86,7 @@ If you're a mere mortal like me and you're tired of hearing how powerful git is
   - [Fedora and RHEL](#fedora-and-rhel)
   - [Solus Linux](#solus-linux)
   - [Ubuntu](#ubuntu)
+  - [Debian](#debian)
   - [Funtoo Linux](#funtoo-linux)
   - [Gentoo Linux](#gentoo-linux)
   - [FreeBSD](#freebsd)
@@ -318,6 +319,18 @@ Verify the correct installation of lazygit:
 lazygit --version
 ```
 
+### Debian
+```sh
+make makedeb
+sudo dpkg -i lazygit.deb
+```
+
+Verify the correct installation of lazygit:
+
+```sh
+lazygit --version
+```
+
 ### Funtoo Linux
 
 Funtoo Linux has an autogenerated lazygit package in [dev-kit](https://github.com/funtoo/dev-kit/tree/1.4-release/dev-vcs/lazygit):

scripts/makedeb.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+mkdir -p lazygit_deb/{DEBIAN,usr/local/bin}
+cat << EOF > lazygit_deb/DEBIAN/control
+Package: lazygit
+Version: 0.44.1
+Maintainer: jesseduffield
+Architecture: amd64
+Description: simple terminal UI for git commands
+EOF
+cp ../lazygit lazygit_deb/usr/local/bin/
+dpkg-deb --build lazygit_deb
+mv lazygit_deb.deb lazygit.deb
+rm -rf lazygit_deb