gettings started with rust link

Author: Stephan Dilly

README.md

@@ -162,12 +162,12 @@ Binaries available for:
 
 ### Requirements
 
-- Latest `rust` and `cargo`
+- Minumum supported `rust`/`cargo` version: `1.50`
   - See [Install Rust](https://www.rust-lang.org/tools/install)
 
 ### Cargo Install
 
-The simplest way to start playing around with `gitui` is to have `cargo` build and install it with `cargo install gitui`
+The simplest way to start playing around with `gitui` is to have `cargo` build and install it with `cargo install gitui`. If you are not familiar with rust and cargo: [Getting Started with Rust](https://doc.rust-lang.org/book/ch01-00-getting-started.html)
 
 ## 8. <a name="diagnostics"></a> Diagnostics <small><sup>[Top ▲](#table-of-contents)</sup></small>