bluetooth-key-sharing: fix the line wrapping for Registry path
code: nuke subtitle, rename to projects

Eventually I might fill this with more than code.
everything: rename to 'writings'
mass-relink to writings.html
index: link to 'author' at the end
do not .gitignore pages that are no longer generated
writings: do not link to 'experiments'

That page is crap and I'll redo it later...someday. It's enough that
'author' links there for contact info.
utf-8: drop the pointless junk/ subdirectory
index: remove link to Last.fm