Format tutorial section on regular expressions

Author: p

docs/tutorials/bson-v4.txt

@@ -280,22 +280,22 @@ deserialized, they will always be returned as a ``Time`` since the BSON
 specification only has a ``Time`` type and knows nothing about Ruby.
 
 
-Using Regexes
------------------
+Regular Expressions
+-------------------
 
-Ruby regular expressions always have BSON regular expression's equivalent of 'm' on.
-In order for behavior to be preserved between the two, the 'm' option is always added
-when a Ruby regular expression is serialized to BSON.
+Ruby regular expressions always have BSON regular expressions' equivalent of
+'m' flag on. In order for behavior to be preserved between the two, the 'm'
+option is always added when a Ruby regular expression is serialized to BSON.
 
-There is a class provided by the bson gem, ``Regexp::Raw``, to allow Ruby users to get around this.
-You can simply create a regular expression like this:
+There is a class provided by the bson gem, ``Regexp::Raw``, to allow Ruby users
+to get around this. You can simply create a regular expression like this:
 
 .. code-block:: ruby
 
   Regexp::Raw.new("^b403158")
 
-This code example illustrates the difference between serializing a core Ruby ``Regexp`` versus a
-``Regexp::Raw`` object:
+This code example illustrates the difference between serializing a core Ruby
+``Regexp`` versus a ``Regexp::Raw`` object:
 
 .. code-block:: ruby
 
@@ -313,8 +313,8 @@ This code example illustrates the difference between serializing a core Ruby ``R
   # => "^b403158\x00\x00"
 
 
-Please use the ``Regexp::Raw`` class to instantiate your BSON regular expressions to get the exact
-pattern and options you want.
+Please use the ``Regexp::Raw`` class to instantiate your BSON regular
+expressions to get the exact pattern and options you want.
 
 When regular expressions are deserialized, they return a wrapper that holds the
 raw regex string, but do not compile it. In order to get the Ruby ``Regexp``