Formatting fixes in the README

Author: SimonSapin

README.rst

@@ -94,16 +94,16 @@ associated with the expected result.
 
 ``color3_hsl.json``
     Same as ``color3.json``.
-    This file is generated the ``make_color3_hsl.py`` Python script.
+    This file is generated by the ``make_color3_hsl.py`` Python script.
 
 ``color3_keywords.json``
     Same as ``color3.json``,
     except that the values for the Red, Green and Blue channel
     are between 0 and 255.
-    This file is generated the ``make_color3_keywords.py`` Python script.
+    This file is generated by the ``make_color3_keywords.py`` Python script.
 
-``an+b.json``
-    Tests the `an+b <http://dev.w3.org/csswg/css-syntax/#the-anb-type>`_
+``An+B.json``
+    Tests the `An+B <http://dev.w3.org/csswg/css-syntax/#the-anb-type>`_
     syntax defined in CSS Syntax Level 3.
     This `differs <http://dev.w3.org/csswg/css-syntax/#changes>`_ from the
     `nth grammar rule <http://www.w3.org/TR/css3-selectors/#nth-child-pseudo>`_
@@ -121,7 +121,7 @@ AST nodes (the results of parsing) are represented in JSON as follow.
 This representation was chosen to be compact
 (and thus less annoying to write by hand)
 while staying unambiguous.
-For example, the difference between @import and \@import is not lost:
+For example, the difference between ``@import`` and ``\@import`` is not lost:
 they are represented as ``["at-keyword", "import"]`` and ``["ident", "@import"]``,
 respectively.