docs: query only CLI, no tx commands, proposed gov proposal readme

[barriebyron]

let's make this doc accurate, there is no CLI

Description

Docs must be accurate, so this PR reflects the "there is no CLI" situation

closes part of #71

Tasks

• [ ]

References

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• Wrote unit and integration
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
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[barriebyron]

hi @kogisin thanks for your feedback. This time I made your requested changes. In future, please do jump in and make any changes you require. It's better together. :)

[jaybxyz]

LGTM