chore: update getting started guide to use 2.6.0

[crenshaw-dev]

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
• The title of the PR is (a) conventional, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
• I have written unit and/or e2e tests for my change. PRs without these are unlike to be merged.
• Optional. I've added My organization is added to the README.
• I've signed the CLA and required builds are green.

[codecov]

Codecov Report

Merging #2350 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2350   +/-   ##
=======================================
  Coverage   13.29%   13.30%           
=======================================
  Files          72       72           
  Lines       24602    24602           
=======================================
+ Hits         3272     3274    +2     
+ Misses      20917    20916    -1     
+ Partials      413      412    -1     

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