bladeRF-cli: remove bladeRF-flash mention from man page
README: update refs to bladeRF-flash (Fixes: #295)

Not 100% certain I like the answer to "If your board is stuck,"
but I do believe the 'recover' command is built for this.  Maybe
we need a wiki page or additional interactive help?
minor markdown error

Turns out that I can't see backticks with my monitor brightness set too low...
Merge pull request #296 from rtucker/dev-issue295

bladeRF-flash expurgation (Fixes: #295)