FindDCMTK: Add reStructuredText formatting.

Modules/FindDCMTK.cmake

 #.rst:
 # FindDCMTK
 # ---------
+# Find DCMTK libraries and applications
 #
-# - find DCMTK libraries and applications
-# The module defines the following variables:
+# The module defines the following variables::
 #
 #  DCMTK_INCLUDE_DIRS  - Directories to include to use DCMTK
 #  DCMTK_LIBRARIES     - Files to link against to use DCMTK
 #  DCMTK_FOUND         - If false, don't try to use DCMTK
 #  DCMTK_DIR           - (optional) Source directory for DCMTK
 #
-# DCMTK_DIR can be used to make it simpler to find the various include
+# `DCMTK_DIR` can be used to make it simpler to find the various include
 # directories and compiled libraries if you've just compiled it in the
 # source tree. Just set it to the root of the tree where you extracted
-# the source (default to /usr)
+# the source (default to `/usr`)
 #
 #
 # This file is able to find version of DCMTK that does or does not export
-# a DCMTKConfig.cmake file.
+# a *DCMTKConfig.cmake* file.
 #
-# IMPORTANT: A set of patches has been contributed to DCMTK
-# maintainers and merged upstream. As soon as:
-#   (1) it has been integrated upstream so that it is available in
+# .. important::
+#   A set of patches has been contributed to DCMTK
+#   maintainers and merged upstream. As soon as:
+#
+#   1) it has been integrated upstream so that it is available in
 #   an official release (for example X.Y.Z),
-#   (2) code bases have been updated to build against X.Y.Z
-# This file could be removed.
+#   2) code bases have been updated to build against X.Y.Z
+#
+#   This file could be removed.
 #
-# The set of patches is listed here: https://github.com/commontk/DCMTK/compare/79030ba...f461865
+#   The set of patches is listed here: https://github.com/commontk/DCMTK/compare/79030ba...f461865
 #
 #
 # Waiting for this to happen, build systems will have to be able
@@ -35,24 +38,25 @@
 # On any given system, the following combination of DCMTK version could be
 # considered:
 #
-#         |   SYSTEM DCMTK      +      LOCAL DCMTK      |     Supported ?   |
-# ---------------------------------------------------------------------------
-# Case A  |   NA                +      [ ] DCMTKConfig  |         YES       |
-# ------------------------------------------------------|--------------------
-# Case B  |   NA                +      [X] DCMTKConfig  |         YES       |
-# ------------------------------------------------------|--------------------
-# Case C  |   [ ] DCMTKConfig   +      NA               |         YES       |
-# ------------------------------------------------------|--------------------
-# Case D  |   [X] DCMTKConfig   +      NA               |         YES       |
-# ------------------------------------------------------|--------------------
-# Case E  |   [ ] DCMTKConfig   +      [ ] DCMTKConfig  |         YES (*)   |
-# ------------------------------------------------------|--------------------
-# Case F  |   [X] DCMTKConfig   +      [ ] DCMTKConfig  |         NO        |
-# ------------------------------------------------------|--------------------
-# Case G  |   [ ] DCMTKConfig   +      [X] DCMTKConfig  |         YES       |
-# ------------------------------------------------------|--------------------
-# Case H  |   [X] DCMTKConfig   +      [X] DCMTKConfig  |         YES       |
-# ---------------------------------------------------------------------------
+# +--------+---------------------+-----------------------+-------------------+
+# |        |   SYSTEM DCMTK      |      LOCAL DCMTK      |     Supported ?   |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case A |   NA                |      [ ] DCMTKConfig  |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case B |   NA                |      [X] DCMTKConfig  |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case C |   [ ] DCMTKConfig   |      NA               |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case D |   [X] DCMTKConfig   |      NA               |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case E |   [ ] DCMTKConfig   |      [ ] DCMTKConfig  |         YES (*)   |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case F |   [X] DCMTKConfig   |      [ ] DCMTKConfig  |         NO        |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case G |   [ ] DCMTKConfig   |      [X] DCMTKConfig  |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
+# | Case H |   [X] DCMTKConfig   |      [X] DCMTKConfig  |         YES       |
+# +--------+---------------------+-----------------------+-------------------+
 #
 #  (*) See Troubleshooting section.
 #
@@ -67,31 +71,31 @@
 #
 # It is a two step process:
 #
-#   * Step 1:  Attempt to find DCMTK version providing a DCMTKConfig.cmake file. This is done
-#              with the help of ''
-#   * Step 2:  If step 1 failed, rely on FindDCMTK.cmake to set DCMTK_* variables details below.
-#
-#
+# * Step 1:  Attempt to find DCMTK version providing a DCMTKConfig.cmake file. This is done with the help of `''`
+# * Step 2:  If step 1 failed, rely on FindDCMTK.cmake to set DCMTK_* variables details below.
 #
-# Troubleshooting:
+# Troubleshooting
+# ^^^^^^^^^^^^^^^
 #
-#    What to do if my project finds a different version of DCMTK?
+# What to do if my project finds a different version of DCMTK?
 #
-#    Remove DCMTK entry from the CMake registry.
-#    Search for "CMake user package registry" on http://www.cmake.org/cmake/help/v2.8.9/cmake.html#command:find_package
+# Remove DCMTK entry from the CMake registry per :command:`find_package`
+# documentation.
 #
-#    Details: As some point, the DCMTK build tree was exported [1][2][3]. Indeed, before the set of
-#    patches discussed above has been contributed to upstream DCMTK, an initial implementation of
-#    a DCMTK build system exporting its build tree has been implemented and has been tested by some
-#    folks. This had the effect of populating the CMake registry.
+# Details
+# ^^^^^^^
 #
-#    Since Step1 does not exclude the CMake registry, when dealing with case E, the incorrect version of
-#    DCMTK could be found.
+# At some point, the DCMTK build tree was exported [1][2][3]. Indeed, before the set of
+# patches discussed above has been contributed to upstream DCMTK, an initial implementation of
+# a DCMTK build system exporting its build tree has been implemented and has been tested by some
+# folks. This had the effect of populating the CMake registry.
 #
-#    [1] http://slicer-devel.65872.n3.nabble.com/Packaging-seems-to-work-again-tp4028121p4028134.html
-#    [2] https://www.assembla.com/spaces/slicerrt/tickets/244-dcmtk_dir-vs--dcmtkconfig-cmake?comment=267984263#comment:267984263
-#    [3] http://www.cmake.org/cmake/help/v2.8.11/cmake.html#command:export
+# Since Step1 does not exclude the CMake registry, when dealing with case E, the incorrect version of
+# DCMTK could be found.
 #
+# - [1] http://slicer-devel.65872.n3.nabble.com/Packaging-seems-to-work-again-tp4028121p4028134.html
+# - [2] https://www.assembla.com/spaces/slicerrt/tickets/244-dcmtk_dir-vs--dcmtkconfig-cmake?comment=267984263#comment:267984263
+# - [3] http://www.cmake.org/cmake/help/v2.8.11/cmake.html#command:export
 #
 #=============================================================================
 # Copyright 2004-2009 Kitware, Inc.