Adding a better README

README.md

@@ -1,4 +1,49 @@
-A FoundationDB client in Erlang
+An Erlang Binding to FoundationDB
 ===
 
-Yay!
+This project is a NIF wrapper for the FoundationDB C API. Documentation on
+the main API can be found [here][fdb_docs].
+
+This project also provides a conforming implementation of the [Tuple] and
+[Directory] layers.
+
+[fdb_docs]: https://apple.github.io/foundationdb/api-c.html
+[Tuple]: https://github.com/apple/foundationdb/blob/master/design/tuple.md
+[Directory]: https://apple.github.io/foundationdb/developer-guide.html#directories
+
+
+Building
+---
+
+Assuming you have installed the FoundationDB C API library, building erlfdb
+is as simple as:
+
+    $ make
+
+Alternatively, adding erlfdb as a rebar dependency should Just Work ®.
+
+
+Documentation for installing FoundationDB can be found [here for macOS]
+or [here for Linux].
+
+[here for macOS]: https://apple.github.io/foundationdb/getting-started-mac.html
+[here for Linux]: https://apple.github.io/foundationdb/getting-started-linux.html
+
+
+Quick Example
+---
+
+A simple example showing how to open a database and read and write keys:
+
+```erlang
+
+Eshell V9.3.3.6  (abort with ^G)
+1> Db = erlfdb:open(<<"/usr/local/etc/foundationdb/fdb.cluster">>).
+{erlfdb_database,#Ref<0.2859661758.3941466120.85406>}
+2> ok = erlfdb:set(Db, <<"foo">>, <<"bar">>).
+ok
+3> erlfdb:get(Db, <<"foo">>).
+<<"bar">>
+4> erlfdb:get(Db, <<"bar">>).
+not_found
+```