[docs] Change Base UI `alpha` to `beta` in README#37228

Merged

ZeeshanTamboli merged 1 commit intomui:masterfrom ZeeshanTamboli:mention-base-ui-beta-in-readme

May 10, 2023

+1-1

Commits on May 10, 2023

Base UI - change alpha to beta
ZeeshanTamboli
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