Minor changes to match the style guide.
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index 8d75ff6..a3a01a4 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -33,7 +33,7 @@
 
 The Python interpreter and the extensive standard library are freely
 available in source or binary form for all major platforms from the
-Python web site, \url{http://www.python.org}, and can be freely
+Python Web site, \url{http://www.python.org/}, and can be freely
 distributed.  The same site also contains distributions of and
 pointers to many free third party Python modules, programs and tools,
 and additional documentation.
@@ -105,7 +105,7 @@
 standard modules that you can use as the basis of your programs --- or
 as examples to start learning to program in Python.  There are also
 built-in modules that provide things like file I/O, system calls,
-sockets, and even interfaces to GUI toolkits like Tk.  
+sockets, and even interfaces to graphical user interface toolkits like Tk.  
 
 Python is an interpreted language, which can save you considerable time
 during program development because no compilation and linking is
@@ -745,7 +745,7 @@
 
 Starting with Python 2.0 a new data type for storing text data is
 available to the programmer: the Unicode object. It can be used to
-store and manipulate Unicode data (see \url{http://www.unicode.org})
+store and manipulate Unicode data (see \url{http://www.unicode.org/})
 and integrates well with the existing string objects providing
 auto-conversions where necessary.
 
@@ -3936,7 +3936,7 @@
 
 The major Python Web site is \url{http://www.python.org/}; it contains
 code, documentation, and pointers to Python-related pages around the
-Web.  This web site is mirrored in various places around the
+Web.  This Web site is mirrored in various places around the
 world, such as Europe, Japan, and Australia; a mirror may be faster
 than the main site, depending on your geographical location.  A more
 informal site is \url{http://starship.python.net/}, which contains a