Add line referencing man page to end of -help text
Add -version flag
Add Dockerfile
Remove go get statement from Makefile

We don't use anything but the standard library :)
Add Basic usage section to README.md
Print version to stderr before doing anything
Add Installation section to README.md
Replace all references to udprelay(5) with udprelay(7)

Never underestimate my ability to consistently forget what the man
sections are
Add version footers to man pages
Add clean target to Makefile
Don't override main.Version with emptystring if git not installed
Add upload stage to .build.yml
Add .build.yml
Add make rules to build for any platform
Add Makefile rules for documentation generation
Rename udprelay.5.scd to udprelay.7.scd