no longer refer to XML output #998

doc/tutorial/reading.rst

@@ -132,7 +132,7 @@ We can capture this metadata using the :ref:`info_command` utility.
     $ pdal info --metadata --xml interesting.las
 
 This produces metadata that looks like :ref:`this <metadataxml>`. You can use
-your favorite `XML`_ or `JSON`_ manipulation tools to extract this information
+your favorite `JSON`_ manipulation tools to extract this information
 and do what you need with it. For formats that do not have the ability to
 preserve this metadata internally, you can keep a ``.xml`` or ``.json`` file
 alongside the ``.txt`` file as auxiliary information.
@@ -167,7 +167,7 @@ effects.
 Simple conversion
 ..............................................................................
 
-The following XML document defines a :ref:`pipeline` that takes the ``file.las``
+The following `XML`_ document defines a :ref:`pipeline` that takes the ``file.las``
 `ASPRS LAS`_ file and converts it to a new file called ``output.las``.
 
 ::