Docs update about IngressClass & new controller-level flags

[M00nF1sh]

Docs update about IngressClass & new controller-level flags.

[codecov-commenter]

Codecov Report

Merging #2002 (a4e65fe) into main (4cb7510) will increase coverage by 0.15%.
The diff coverage is n/a.

❗ Current head a4e65fe differs from pull request most recent head 9ac6b89. Consider uploading reports for the commit 9ac6b89 to get more accurate results

@@            Coverage Diff             @@
##             main    #2002      +/-   ##
==========================================
+ Coverage   48.82%   48.98%   +0.15%     
==========================================
  Files         130      130              
  Lines        6998     6998              
==========================================
+ Hits         3417     3428      +11     
+ Misses       3303     3292      -11     
  Partials      278      278              

Impacted Files	Coverage Δ
pkg/networking/vpc_resolver.go	73.33% <0.00%> (+73.33%)	⬆️

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kishorj, M00nF1sh

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[sftim]

Hi

I looked through this and have suggested a mixture of

• tweaks to grammar
• wording revisions, based on my understanding of what the existing text means

I hope this feedback is helpful; if I have obviously misunderstood some parts, please let me know.

[M00nF1sh]

@sftim
Thanks so much for all these valuable suggestion 😄

[kishorj]

/lgtm