fix: fix errors in manifest index examples

[wangxiaoxuan273]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Please check the following list:

• Does the affected code have corresponding tests, e.g. unit test, E2E test?
• Does this change require a documentation update?
• Does this introduce breaking changes that would require an announcement or bumping the major version?
• Do all new files have an appropriate license header?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.42%. Comparing base (555196b) to head (1b08b3a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1634      +/-   ##
==========================================
+ Coverage   84.38%   84.42%   +0.04%     
==========================================
  Files         124      124              
  Lines        5648     5651       +3     
==========================================
+ Hits         4766     4771       +5     
+ Misses        627      625       -2     
  Partials      255      255              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Wwwsylvia]

LGTM