Add version release notes and unify expressions

[bluayer]

Description

I've reflected updates and release date on the readme about the content that actual users would find important.
Also, the expressions for the features between the README, release notes, and Wiki were different, so I modified the README to match these parts.

Issue link

This Pull Request is linked to issue (URL): [REPLACE ME]

[ikolomi]

@bluayer thanks for this PR.

We want to have description of versions in the readme short and concise.
More information can be found here https://github.com/valkey-io/valkey-glide/releases/tag/v1.2.0

So no need to modify the content, but please kindly change the month to Nov (no need to mention GA) they are all GA in the readme

[bluayer]

@ikolomi Thank you for a your comment.
I also know there's information about the release.
If I follow the comment, it seems that the content doesn't need a description of version 1.2, but only a description of the upcoming version 1.3.
1.2 version is in the README, even though it is GA, causes confusion because README also contains information about version 1.3.

Suggestion : How about deleting the content about version 1.2 and adding a link to Release?

[avifenesh]

@ikolomi I think we can add a section of "last release" or similar to make it clear. Better wordings, probably.

[ikolomi]

@bluayer
We want the readme to contain a short description of the current (1.2) and the upcomming (1.3) releases
Now I see you point of adding the "GA" to 1.2 label. Although it is obvious from the dates, i am OK to have the GA mark

Kindly update your PR