doc: nginx 1.9.3 is compatible.

README.markdown

@@ -297,6 +297,7 @@ Nginx Compatibility
 ===================
 The latest module is compatible with the following versions of Nginx:
 
+* 1.9.x (last tested: 1.9.3)
 * 1.7.x (last tested: 1.7.10)
 * 1.6.x
 * 1.5.x (last tested: 1.5.12)
@@ -326,9 +327,9 @@ Build the source with this module:
 
 ```bash
 
- wget 'http://nginx.org/download/nginx-1.7.10.tar.gz'
- tar -xzvf nginx-1.7.10.tar.gz
- cd nginx-1.7.10/
+ wget 'http://nginx.org/download/nginx-1.9.3.tar.gz'
+ tar -xzvf nginx-1.9.3.tar.gz
+ cd nginx-1.9.3/
 
  # tell nginx's build system where to find LuaJIT 2.0:
  export LUAJIT_LIB=/path/to/luajit/lib