A few small improvements to the README (#29)

Author: DilumAluthge

README.md

@@ -1,17 +1,17 @@
-# Git
+# Git.jl
 
 [![CI](https://github.com/JuliaVersionControl/Git.jl/actions/workflows/ci.yml/badge.svg)](https://github.com/JuliaVersionControl/Git.jl/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/JuliaVersionControl/Git.jl/branch/master/graph/badge.svg?token=cdXpiH0OJ3)](https://codecov.io/gh/JuliaVersionControl/Git.jl)
 
-Git allows you to use command-line Git in your Julia packages. You do
+Git.jl allows you to use command-line Git in your Julia packages. You do
 not need to have Git installed on your computer, and neither do the users of
 your packages!
 
-Git provides a Git binary via
-[Git_jll](https://github.com/JuliaBinaryWrappers/Git_jll.jl).
-The latest version of Git requires at least Julia 1.6.
+Git.jl provides a Git binary via
+[Git_jll.jl](https://github.com/JuliaBinaryWrappers/Git_jll.jl).
+The latest version of Git.jl requires at least Julia 1.6.
 
-Git is intended to work on any platform that supports Julia,
+Git.jl is intended to work on any platform that supports Julia,
 including (but not limited to) Windows, macOS, Linux, and FreeBSD.
 
 ## Examples