Extend docs

Cargo.toml

@@ -1,7 +1,26 @@
 [package]
 name = "prettyprint"
+license = "Apache-2.0/MIT"
+readme = "README.md"
+repository = "https://github.com/mre/prettyprint"
 version = "0.1.0"
-authors = ["Matthias Endler <matthias-endler@gmx.net>"]
+authors = [
+    "Matthias Endler <matthias-endler@gmx.net>",
+]
+categories = [
+    "command-line-interface",
+    "parsing",
+]
+description = "Print beautifully formatted files and strings to your terminal"
+documentation = "https://github.com/mre/prettyprint/blob/master/README.md"
+homepage = "https://github.com/mre/prettyprint"
+keywords = [
+    "syntax", 
+    "highlighting", 
+    "highlighter",
+    "colouring",
+    "prettyprint"
+]
 
 [dependencies]
 ansi_colours = "1.0.1"

README.md

@@ -37,6 +37,14 @@ printer.string_with_header(example, "fib.rb")?;
 "What!? It can also print strings, Matthias? That's insane."  
 It's true. You're welcome.
 
+## Installation
+
+Add this to your `Cargo.toml`:
+
+```
+prettyprint = "*"
+```
+
 ## But why?
 
 [`syntect`](https://github.com/trishume/syntect/) is a great package for highlighting text.