Remove docs dir; use gh-pages branch

Author: ian-h-chamberlain

README.md

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+# corewa_rs
+A Rust implementation of [Core Wars](http://www.koth.org/index.html).
+
+The implementation is based on [this introductory guide](http://vyznev.net/corewar/guide.html) to Redcode, as well as the [pMARS '94 reference](http://corewa.rs/pmars-redcode-94.txt) and an [annotated version](http://corewa.rs/icws94.txt) of the ICWS '94 draft.
+
+## Crates
+* [corewa_rs](http://corewa.rs/crates/corewa_rs) - the main implementation
+* [testutils](http://corewa.rs/crates/testutils) - some utilities for working with load files and testing complex predicates