Fixing Win OMERO.server installation web format

[hflynn]

Web page had funny blue shadows next to some of the highlighted sections and some numbering missing because the file wasn't correctly formatted in places - too many spaces and inconsistent mark-up.

Check between 'Creating a database as root' and 'OMERO.web and administration'

[sbesson]

Everything is now fixed except for the last block before OMERO.web and administration which may still have incorrect indentation.

[hflynn]

Should be fixed now, needed one further space.

[sbesson]

Still doesn't look great. Looks like the problem is that the .. parsed-literal:: directive has an extra space compared to the descriptive paragraph. From the source:

-  You can now test that you can log-in as "root", either with the
   OMERO.insight client or command-line:

    .. parsed-literal::

[sbesson]

Fixed now. Ready to merge.