Update multiple registries support docs

[jim3ma]

Signed-off-by: Jim Ma majinjing3@gmail.com

Description

Related Issue

Motivation and Context

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist:

• Code compiles correctly.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Merging #481 (4fd64e5) into main (8efafd8) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #481      +/-   ##
==========================================
- Coverage   36.39%   36.38%   -0.02%     
==========================================
  Files          90       90              
  Lines        7009     7009              
==========================================
- Hits         2551     2550       -1     
- Misses       4091     4095       +4     
+ Partials      367      364       -3     

Flag	Coverage Δ
e2etests	∅ <ø> (∅)
unittests	36.38% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
client/daemon/peer/peertask_stream.go	54.77% <0.00%> (-1.11%)	⬇️
client/daemon/peer/peertask_stream_callback.go	64.55% <0.00%> (+2.53%)	⬆️

[gaius-qi]

LGTM