Update maps.rst

Now, map object support Hinode/SOT
Improving Doc String for Hinode/SOT
Merge pull request #6 from dpshelio/SOTdocstring

SOT docstring in the right branch
changed tabs by spaces
Merge pull request #7 from dpshelio/SOTdocstring

Tabs changed by spaces
Merge pull request #1023 from Hypnus1803/patch-4

Update documentation about  maps - adding SOT support