docs: fix mcp start command

[Shrey327]

Description

• Fix func mcp → func mcp start in config examples and intro text
• func mcp alone only prints help, start subcommand is required to launch the server

[knative-prow]

Hi @Shrey327. Thanks for your PR.

I'm waiting for a knative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[gauron99]

/ok-to-test

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.91%. Comparing base (f69e94b) to head (a318872).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3716   +/-   ##
=======================================
  Coverage   56.91%   56.91%           
=======================================
  Files         181      181           
  Lines       20928    20928           
=======================================
+ Hits        11911    11912    +1     
  Misses       7809     7809           
+ Partials     1208     1207    -1     

Flag	Coverage Δ
e2e	36.15% <ø> (-0.01%)	⬇️
e2e go	32.75% <ø> (ø)
e2e node	28.48% <ø> (-0.03%)	⬇️
e2e python	33.11% <ø> (ø)
e2e quarkus	28.62% <ø> (ø)
e2e rust	28.03% <ø> (ø)
e2e springboot	26.52% <ø> (+0.02%)	⬆️
e2e typescript	28.59% <ø> (ø)
e2e-config-ci	17.88% <ø> (ø)
integration	17.44% <ø> (+0.01%)	⬆️
unit macos-14	44.99% <ø> (ø)
unit macos-latest	44.98% <ø> (-0.01%)	⬇️
unit ubuntu-24.04-arm	45.16% <ø> (ø)
unit ubuntu-latest	45.84% <ø> (ø)
unit windows-latest	44.97% <ø> (+<0.01%)	⬆️

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[gauron99]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gauron99, Shrey327

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Details

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• OWNERS [gauron99]

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[gauron99]

/retest