doc: Update typo in "Welcome to Milvus"

[franciscojavierarceo]

enhance: Updating a minor typo.

[sre-ci-robot]

Welcome @franciscojavierarceo! It looks like this is your first PR to milvus-io/milvus 🎉

[mergify]

@franciscojavierarceo Thanks for your contribution. Please submit with DCO, see the contributing guide https://github.com/milvus-io/milvus/blob/master/CONTRIBUTING.md#developer-certificate-of-origin-dco.

[mergify]

@franciscojavierarceo

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[mergify]

@franciscojavierarceo go-sdk check failed, comment rerun go-sdk can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.53%. Comparing base (11bfc93) to head (05c6aec).
Report is 3 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (11bfc93) and HEAD (05c6aec). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (11bfc93)	HEAD (05c6aec)
	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #38995       +/-   ##
===========================================
- Coverage   81.14%   69.53%   -11.61%     
===========================================
  Files        1388      296     -1092     
  Lines      196471    26540   -169931     
===========================================
- Hits       159418    18455   -140963     
+ Misses      31465     8085    -23380     
+ Partials     5588        0     -5588     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	69.53% <ø> (ø)
Go	∅ <ø> (∅)

see 1092 files with indirect coverage changes

[czs007]

/approve
/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

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