Update README

Author: Taymindis

README

@@ -1,7 +1,9 @@
-Catch body filter module for nginx.
+nginx-if-request-body
+=====
+
+
+For body filter before proxy to backend
 
-This is a test module, to check request body filters experimental
-machinery to be introduced.
 
 Example:
 
@@ -24,4 +26,4 @@ Example:
 
     }
 
-```
+```