docs: Add inline docs (#11992)

## Description

Closes: #XXXX



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] 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
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/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
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
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)

x/authz/client/cli/query.go

@@ -95,6 +95,7 @@ $ %s query %s grants cosmos1skjw.. cosmos1skjwj.. %s
 	return cmd
 }
 
+// GetQueryGranterGrants returns cmd to query for all grants for a granter.
 func GetQueryGranterGrants() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "granter-grants [granter-addr]",
@@ -143,6 +144,7 @@ $ %s q %s granter-grants cosmos1skj..
 	return cmd
 }
 
+// GetQueryGranteeGrants returns cmd to query for all grants for a grantee.
 func GetQueryGranteeGrants() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "grantee-grants [grantee-addr]",

x/authz/client/cli/tx.go

@@ -51,6 +51,7 @@ func GetTxCmd() *cobra.Command {
 	return AuthorizationTxCmd
 }
 
+// NewCmdGrantAuthorization returns a CLI command handler for creating a MsgGrant transaction.
 func NewCmdGrantAuthorization() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "grant <grantee> <authorization_type=\"send\"|\"generic\"|\"delegate\"|\"unbond\"|\"redelegate\"> --from <granter>",
@@ -199,6 +200,7 @@ func getExpireTime(cmd *cobra.Command) (*time.Time, error) {
 	return &e, nil
 }
 
+// NewCmdRevokeAuthorization returns a CLI command handler for creating a MsgRevoke transaction.
 func NewCmdRevokeAuthorization() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "revoke [grantee] [msg-type-url] --from=[granter]",
@@ -232,6 +234,7 @@ Example:
 	return cmd
 }
 
+// NewCmdExecAuthorization returns a CLI command handler for creating a MsgExec transaction.
 func NewCmdExecAuthorization() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "exec [tx-json-file] --from [grantee]",