docs: updating tla+ spec

[b00f]

Description

This PR introduces a condition to compare the current cp_round with MaxCPRound in the CPDecide phase. This helps to check the liveness of the protocol using TLC checker.
It has been tested using the TLC checker.

[codecov]

Codecov Report

Merging #641 (1fb44c8) into main (5a08896) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

❗ Current head 1fb44c8 differs from pull request most recent head 66263b9. Consider uploading reports for the commit 66263b9 to get more accurate results

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