Since x/ repos are now automatically periodically tagged, the previous
definition of the minor and patch versions of this module are now
obsolete. Delete that section of the README; regular semantic versioning
rules apply here.

Fixes golang/go#57089

Change-Id: I394ae4bb4eec1aa21c26b678b9ed1251b1eecf14
Reviewed-on: https://go-review.googlesource.com/c/text/+/455516
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Auto-Submit: Damien Neil <dneil@google.com>