Clarified and fixed typo

contributing.rst

@@ -142,8 +142,8 @@ When contributing new procedures, be sure to add documentation, especially if
 the procedure is exported from the module. Documentation begins on the line
 following the ``proc`` definition, and is prefixed by ``##`` on each line.
 
-Code examples are also encouraged. The RST syntax Nim uses has a special syntax
-for including examples.
+Code examples are also encouraged. The RestructuredText Nim uses has a special 
+syntax for including examples.
 
 .. code-block:: nim
 
@@ -156,7 +156,7 @@ for including examples.
     result = "something" # single-hash comments do not produce documentation
 
 The ``.. code-block:: nim`` followed by a newline and an indentation instructs the 
-``nim doc`` and ``nim doc2`` commands to produce syntax-highlited example code with 
+``nim doc`` and ``nim doc2`` commands to produce syntax-highlighted example code with 
 the documentation.
 
 When forward declaration is used, the documentation should be included with the