* zx81_cass.xml: New working entry
- AMSAT AMS-81 Tracking System (Version N5BF 1.4) [Sarah Rose Giddings, ICEknight, retroLEL]
Also: Added loading instructions and other info, removed stuff not relevant to softlist.
* Update zx81_cass.xml
Observations.
* Formatting stuff
* Fixed info and added loading instructions for 8progs
* Update zx81_cass.xml
* Update zx81_cass.xml
* Replaced notes with comments
* List of missing dumps
* Update zx81_cass.xml
* Update zx81_cass.xml
* reworded comment
* put comment block back to top of file, remove tabs in comments
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Co-authored-by: hap <happppp@users.noreply.github.com>
Get rid of a couple of copies of the CC0 text. Add header comment to
CC0 files to remind people editing them what the terms are. Also add
some missing XML headers. The header comments in layouts won't bloat
the binary - they get stripped out before compressing, same as any other
comments.
