Additional fixes

- [DEVCON] Fixed sentence clarity*
- [KEYHOTEE] Added missing comma.
- [KEYHOTEE] Fixed hyphenated adjective.
- [TEAM] Fixed hyphenated adjective.**
- [TEAM] Made reference to "block-chain" consistent.**
- [TEAM] Added missing space.**
- [TEAM] Fixed awkward word placement.**
- [TEAM] Fixed sentence fragment.**
- [TEAM] Added missing comma.**
- [TEAM] Added missing quote.**
- [TEAM] Made reference to I3 consistent.
- [TEAM] Made reference to I3 consistent.

\* Overwrites a previous change and should not be counted as part of the PTS bounty.
\** The typos on the team page are contained within image files.  I modified the commented-out text to indicate the fixed content, but I am unable to make edits to the image files themselves.

Note that each commit in this pull request reflects an item in the above list (unless otherwise noted).

PTS PZ32Dv8NA1CBNtYyu5Z14qWNL6VWDSP4HC