Fix workflow badge

[gtrkiller]

Fix broken "publish to edge" badge. Also updating the docs so the publish docs workflow passes.

[github-actions]

Test coverage for 409a3c8

Name                 Stmts   Miss Branch BrPart  Cover   Missing
----------------------------------------------------------------
src/charm.py           201     18     41      9    89%   126-129, 157-158, 178-179, 198, 239-241, 255->266, 274-278, 352->355, 377, 390, 399->402, 477
src/file_reader.py      17      0      6      0   100%
----------------------------------------------------------------
TOTAL                  218     18     47      9    90%

Static code analysis report

Run started:2023-07-13 19:43:43.140827

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 1288
  Total lines skipped (#nosec): 1
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):

[arturo-seijas]

LGTM

[gregory-schiano]

It's a bit more that just changing the badge, can you adapt the description accordingly ?