Change "Docs" to "Gitlab"

Then list:
RuleMaker https://gitlab.com/xalgorithms-alliance/rule-authoring-software/xalgo-devrm-v3/-/commits/dev
RuleReserve & Taker https://gitlab.com/xalgorithms-alliance/rule-networking-software/prod-impl/-/blob/master/README.md

And change"REFERENCE IMPLEMENTATIONS" to "SEQUENCE DIAGRAMS"
... then leave those three links there.