Documentation and README updates

Cargo.toml

@@ -5,6 +5,7 @@ authors = ["The Servo Project Developers"]
 license = "MIT / Apache-2.0"
 description = "Implementation of the Unicode Bidirectional Algorithm"
 repository = "https://github.com/servo/unicode-bidi"
+documentation = "http://doc.servo.org/unicode_bidi/"
 keywords = ["rtl", "unicode", "text", "layout", "bidi"]
 
 [lib]

README.md

@@ -2,6 +2,10 @@
 
 This crate implements the [Unicode Bidirectional Algorithm][tr9] for display
 of mixed right-to-left and left-to-right text.  It is written in safe Rust,
-compatible with Rust 1.0 and later.
+compatible with the current stable release.
+
+[Documentation](http://doc.servo.org/unicode_bidi/)
+
+[![Build Status](https://travis-ci.org/servo/unicode-bidi.svg?branch=master)](https://travis-ci.org/servo/unicode-bidi)
 
 [tr9]: http://www.unicode.org/reports/tr9/

src/lib.rs

@@ -8,8 +8,8 @@
 // except according to those terms.
 
 //! This crate implements the [Unicode Bidirectional Algorithm][tr9] for display of mixed
-//! right-to-left and left-to-right text.  It is written in safe Rust, compatible with Rust 1.0 and
-//! later.
+//! right-to-left and left-to-right text.  It is written in safe Rust, compatible with the
+//! current stable release.
 //!
 //! ## Example
 //!
@@ -150,7 +150,7 @@ fn class_for_level(level: u8) -> BidiClass {
 
 /// Re-order a line based on resolved levels.
 ///
-/// `info` is the result of calling `process_text` on `text`.
+/// `levels` are the embedding levels returned by `process_text`.
 /// `line` is a range of bytes indices within `text`.
 ///
 /// Returns the line in display order.