readme updates

README.md

@@ -1,5 +1,14 @@
 An OpenGL renderer for [Mapbox vector tiles](https://www.mapbox.com/blog/vector-tiles),
-implemented in C++, targeting iOS & OS X.
+implemented in C++11, targeting iOS & OS X.
+
+# Depends
+
+ - Modern C++ compiler that supports `-std=c++11`
+ - libpng
+ - glfw3
+ - Boost (headers only)
+ - Python (for build only)
+ - Node.js (for build only)
 
 # Build instructions
 
@@ -34,7 +43,6 @@ Options:
                         Path to png libs
 ```
 
-
 Then you can build the OS X app with make:
 
     make app
@@ -102,12 +110,10 @@ Build `libllmr`:
     ./configure
     make
 
-Note: build will not compile until https://github.com/mapbox/llmr-native/issues/26 is fixed.
-
 # Style protobuf
 
 We're encoding the styling information as a protocol buffer, according to
-proto/style.proto. The reason for doing so is that we don't have to ship with a
+proto/style.proto. The reason for doing so is to avoid needing to ship with a
 JSON/yaml parser. To test the conversion script, run
 
 ```