Minor formatting changes to ToS

- Removed quote marks from around pod name (looks a bit ugly)
- Changed full caps (ditto) to bold in legal stuff paras
- Moved privacy anchor up a couple of lines so heading isn't hidden by header bar.

One further suggestion is to put the pod name in bold each time it occurs. 'Terms' and 'Service', when used to mean what they are defined as in this document, are both capitalised, but with many pods being called simply 'diaspora*' (lower case) it doesn't look very distinct. What do you think?

If this is a good idea, could someone tell me how to embolden a portion of text on a line? I don't know how to close a formatting code in haml, and I can't find any decent tutorials online.