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Most of the examples needed updates of Readmes to show how to run them. Some of the requirements.txt files had extra content that wasn't needed, or missing altogether. Apparently some folks like to run npm start
to run typescript, so a script was added to all typescript examples which
hadn't been done before.

Basically just a lot of cleanup.
Signed-off-by: Matt Williams <m@technovangelist.com>

Signed-off-by: Matt Williams <m@technovangelist.com>

Signed-off-by: Matt Williams <m@technovangelist.com>