docs: Bring docs changes into DIP read me files

[ChrisChinchilla]

fixes KILTProtocol/ticket#2976

Docs: Tweaks some grammar and readability to the DIP pallet readmes so they can be included in docs.

[ntn-x2]

Also please update the PR title to follow conventional commits (the CI fails due to that): https://www.conventionalcommits.org/en/v1.0.0/. This is probably a docs: PR.

[ChrisChinchilla]

@ntn-x2 At the moment, the plugin, which I have added here https://github.com/KILTprotocol/docs/pull/291 just pulls a raw file, but I think I can change the URL to be branches or tags instead. However, we need to setup versioning in the docs too to support this, which is tracked in https://github.com/KILTprotocol/ticket/issues/3149 so for now it will have to just be "develop", but that can change… soon ™️ . Short term not ideal, but I think we can track it manually until then.

[ntn-x2]

Mhhh then I'd rather have the docs point to the release branch than to develop. I'm saying this because there'll soon be few PRs which make the docs outdated.

[ChrisChinchilla]

@ntn-x2 Release 1.12.1?

[ntn-x2]

Correct.

[ChrisChinchilla]

@ntn-x2 OK, done! I'll now fix up the other end.

[ntn-x2]

@Ad96el @weichweich do you think we can merge this commit on the release branch and then cherry-pick it on develop? I am not sure if the changed README changes the metadata of the WASM, since it's used as the crate top-level documentation as well.

[ntn-x2]

@ChrisChinchilla can you check if anything needs to be updated, and then we can merge this?

[ChrisChinchilla]

@ntn-x2 Oh! i thought it already was! Nothing has changed that affects this PR, no.