Update README

Author: reagent

README.md

@@ -2,8 +2,20 @@
 
 This is just a simple implementation of an HTTP client written in C.  It uses the included library to initialize and build a dynamically growable buffer.
 
-## Installation & Usage
+## Dependencies
 
+* [uriparser](http://uriparser.sourceforge.net/) -- TODO: build instructions
+
+## Installation
+
+Once all dependencies are installed, run these commands to build included dependencies and the client itself:
+
+    $ git submodule init && git submodule update
+    $ cd vendor/buffer && make && cd -
     $ make
-    $ http -h <hostname>
-    $ http -h <hostname> -p <port>
+
+## Usage
+
+The client takes a single parameter -- the URL to fetch:
+
+    $ ./bin/http http://example.com/foobar.html