Minor adjustments, including markup corrections.
diff --git a/Doc/lib/xmldom.tex b/Doc/lib/xmldom.tex
index 87070b9..9aa84a8 100644
--- a/Doc/lib/xmldom.tex
+++ b/Doc/lib/xmldom.tex
@@ -90,10 +90,11 @@
The \module{xml.dom} contains the following functions:
\begin{funcdesc}{registerDOMImplementation}{name, factory}
-Register the \var{factory} function with the \var{name}. The factory
-function should return an object which implements the
-\code{DOMImplementation| interface. The factory function can either return
-the same object, or a new one (e.g. if that implementation supports
+Register the \var{factory} function with the name \var{name}. The
+factory function should return an object which implements the
+\class{DOMImplementation} interface. The factory function can return
+the same object every time, or a new one for each call, as appropriate
+for the specific implementation (e.g. if that implementation supports
some customization).
\end{funcdesc}
@@ -102,7 +103,7 @@
well-known, the module name of a DOM implementation, or
\code{None}. If it is not \code{None}, imports the corresponding module and
returns a \class{DOMImplementation} object if the import succeeds. If
-no name is given, and if the environment variable \code{PYTHON_DOM} is
+no name is given, and if the environment variable \envvar{PYTHON_DOM} is
set, this variable is used to find the implementation.
If name is not given, consider the available implementations to find