Correct additional spelling mistakes in readme

Author: expipiplus1

README.md

@@ -1,7 +1,7 @@
 Make text objects for various C and C++ blocks with power of clang
 ==================================================================
 
-This vim plugin makes text objects for various C and C++ blocks, funciton, class, namespace, expression, statement and so on.
+This vim plugin makes text objects for various C and C++ blocks, function, class, namespace, expression, statement and so on.
 
 ## Dependencies
 
@@ -47,7 +47,7 @@ Screenshot:
 
 ![screenshot](http://gifzo.net/82IlUtfW1g.gif)
 
-## More complecated operator-pending mappings
+## More complicated operator-pending mappings
 
 If you set `g:textobj_clang_more_mappings` to `1`, many operator-pending mappings are defined.  As a default, mappings in a below table are defined.  You can control the number of the mappings with `g:textobj_clang_mapping_kinds`.