docs: Improve markdownlint configuration (#11104 )

## Description

Closes: #9404



---

### Author Checklist

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please add links to any relevant follow up issues.*

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [x] reviewed "Files changed" and left comments if necessary
- [x] confirmed all CI checks have passed

### Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

2022-02-10 12:07:01 +00:00

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State

Accounts

Accounts contain authentication information for a uniquely identified external user of an SDK blockchain, including public key, address, and account number / sequence number for replay protection. For efficiency, since account balances must also be fetched to pay fees, account structs also store the balance of a user as sdk.Coins.

Accounts are exposed externally as an interface, and stored internally as either a base account or vesting account. Module clients wishing to add more account types may do so.

0x01 | Address -> ProtocolBuffer(account)

Account Interface

The account interface exposes methods to read and write standard account information. Note that all of these methods operate on an account struct confirming to the interface - in order to write the account to the store, the account keeper will need to be used.

// AccountI is an interface used to store coins at a given address within state.
// It presumes a notion of sequence numbers for replay protection,
// a notion of account numbers for replay protection for previously pruned accounts,
// and a pubkey for authentication purposes.
//
// Many complex conditions can be used in the concrete struct which implements AccountI.
type AccountI interface {
	proto.Message

	GetAddress() sdk.AccAddress
	SetAddress(sdk.AccAddress) error // errors if already set.

	GetPubKey() crypto.PubKey // can return nil.
	SetPubKey(crypto.PubKey) error

	GetAccountNumber() uint64
	SetAccountNumber(uint64) error

	GetSequence() uint64
	SetSequence(uint64) error

	// Ensure that account implements stringer
	String() string
}

Base Account

A base account is the simplest and most common account type, which just stores all requisite fields directly in a struct.

// BaseAccount defines a base account type. It contains all the necessary fields
// for basic account functionality. Any custom account type should extend this
// type for additional functionality (e.g. vesting).
message BaseAccount {
  string address = 1;
  google.protobuf.Any pub_key = 2;
  uint64 account_number = 3;
  uint64 sequence       = 4;
}

Vesting Account

See Vesting.

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