Minor changes to match the style guide.
diff --git a/Doc/lib/librestricted.tex b/Doc/lib/librestricted.tex
index 2e1c11a..fe18035 100644
--- a/Doc/lib/librestricted.tex
+++ b/Doc/lib/librestricted.tex
@@ -4,11 +4,11 @@
operating system throug the various functions and classes, For
example, a Python program can open any file for reading and writing by
using the \function{open()} built-in function (provided the underlying
-OS gives you permission!). This is exactly what you want for most
-applications.
+operating system gives you permission!). This is exactly what you want
+for most applications.
There exists a class of applications for which this ``openness'' is
-inappropriate. Take Grail: a web browser that accepts ``applets,''
+inappropriate. Take Grail: a Web browser that accepts ``applets,''
snippets of Python code, from anywhere on the Internet for execution
on the local system. This can be used to improve the user interface
of forms, for instance. Since the originator of the code is unknown,