ingress-path-matching: doc typo

[cep21]

A small typo in the README describing the path matching.

What this PR does / why we need it:

Small documentation typo

Types of changes

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Just documentation change.

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have added tests to cover my changes.
• All new and existing tests passed.

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[cep21]

/assign @ElvinEfendi

[cmluciano]

/ok-to-test

This looks good to me and makes sense with the example, I had a hard time trying to test some of these out in an online regex tester

[codecov-io]

Codecov Report

Merging #5111 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5111      +/-   ##
==========================================
+ Coverage   58.65%   58.68%   +0.02%     
==========================================
  Files          88       88              
  Lines        6850     6850              
==========================================
+ Hits         4018     4020       +2     
+ Misses       2391     2390       -1     
+ Partials      441      440       -1

Impacted Files	Coverage Δ
internal/ingress/metric/collectors/process.go	90.62% <0%> (+2.08%)	⬆️

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[aledbf]

/lgtm
/approve

[aledbf]

@cep21 thanks!

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, cep21

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