Fix sphinx header underline warnings I introduced...

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)

docs/sources/reference/commandline/cli.rst

@@ -374,7 +374,7 @@ The me/bar image will now have port 22 exposed, MYVAR env var set to 'foobar', a
 Note that this is currently a shallow merge. So, for example, if you had specified a new port spec in the --run= config above, that would have clobbered the 'EXPOSE 22' setting from the parent container.
 
 Full --run example
-.................
+..................
 
 The ``--run`` JSON hash changes the ``Config`` section when running ``docker inspect CONTAINERID``
 or ``config`` when running ``docker inspect IMAGEID``. Existing configuration key-values that are
@@ -1172,7 +1172,7 @@ See :ref:`port_redirection` for more detailed information about the ``--expose``
 specific examples using ``--link``.
 
 Known Issues (run --volumes-from)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 * :issue:`2702`: "lxc-start: Permission denied - failed to mount"
   could indicate a permissions problem with AppArmor. Please see the

docs/sources/reference/run.rst

@@ -113,7 +113,7 @@ Container Identification
 ------------------------
 
 Name (--name)
-............
+.............
 
 The operator can identify a container in three ways:
 
@@ -157,7 +157,7 @@ Your container will use the same DNS servers as the host by default,
 but you can override this with ``--dns``.
 
 Clean Up (--rm)
---------------
+---------------
 
 By default a container's file system persists even after the container
 exits. This makes debugging a lot easier (since you can inspect the