[GEOS-5507] Explain how to upload a style to a workspace, and how to assign that style to a layer in the same workspace
Merge pull request #172 from landryb/GEOS-5507-doc

[GEOS-5507] Explain how to upload a style to a workspace, and how to ass...
Merge branch 'master' of git://github.com/geoserver/geoserver