Update README.md with v8 Alpha v2 release announcement

[joelhulen]

The issue or feature being addressed

Details on the issue fix or feature implementation

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov]

Codecov Report

Merging #1337 (8072f0d) into main (12b66c2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1337   +/-   ##
=======================================
  Coverage   83.49%   83.49%           
=======================================
  Files         270      270           
  Lines        6379     6379           
  Branches     1003     1003           
=======================================
  Hits         5326     5326           
  Misses        844      844           
  Partials      209      209           

Flag	Coverage Δ
linux	83.49% <ø> (ø)
macos	83.49% <ø> (ø)
windows	83.49% <ø> (ø)

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