az boards | missing examples in reference content

### Describe the bug

### Bug category:
**Missing information**

### Request:

The [Azure CLI reference guidelines](https://github.com/Azure/azure-cli/blob/dev/doc/reference_doc_guidelines.md#examples) specifiy at least two examples for each command. Please review the Azure CLI reference guidelines for [examples](https://github.com/Azure/azure-cli/blob/dev/doc/reference_doc_guidelines.md#examples) and [parameters](https://github.com/Azure/azure-cli/blob/dev/doc/reference_doc_guidelines.md#parameters) and add missing content to your source code.

If a parameter accepts JSON content, provide a JSON example in the parameter long or short summary, or in a separate code block.

### Issue summary:
Understanding that not all “create” commands directly generate Microsoft revenue, every “create” or “add” minimally make a revenue-producing Azure resource possible. Consequently, **create commands are the most important examples to add.** Of secondary importance are reference commands with complex parameters (JSON, YAML, URLs, complex Azure resource IDs, multi-valued lists, key:value pairs, conditional parameters, parameter pairs ...).

### Subgroups with no examples:

Note: The commands for these subgroups are in the second table (below). Page views (PVs) for a subgroup are "the sum of all PVs for every autogenerated reference doc in that subgroup." When there is > 1 command in a single GitHub file, the same PV amount is counted for both commands. PVs are being provided as a general idea of customer interest.

| Subgroup name | Status | Command count| 6 month PVs |
|-|-|-|-|
| [az boards](https://docs.microsoft.com/cli/azure/boards) | GA | 1 | 4954 |
| [az boards area project](https://docs.microsoft.com/cli/azure/boards/area/project) | GA | 5 | 603 |
| [az boards iteration project](https://docs.microsoft.com/cli/azure/boards/iteration/project) | GA | 5 | 1095 |
| [az boards iteration team](https://docs.microsoft.com/cli/azure/boards/iteration/team) | GA | 8 | 836 |
| [az boards work-item](https://docs.microsoft.com/cli/azure/boards/work-item) | GA | 4 | 6495 |
| [az boards work-item relation](https://docs.microsoft.com/cli/azure/boards/work-item/relation) | GA | 4 | 1776 |

### Reference commands with no examples:

Note: Some of these command **subgroups** have at least one example. This table is a list of all `az batch` **commands** with no example. PV values repeat when one GitHub file contains > 1 reference command. PVs are being provided as a general idea of customer interest.

| Reference name | Parameter count | is Create | 6 month PVs |
|-|-|-|-|
| [az boards area project create](https://docs.microsoft.com/cli/azure/boards/area/project#az-boards-area-project-create) | 5 | **yes** | 603 |
| [az boards area project delete](https://docs.microsoft.com/cli/azure/boards/area/project#az-boards-area-project-delete) | 5 | | 603 |
| [az boards area project list](https://docs.microsoft.com/cli/azure/boards/area/project#az-boards-area-project-list) | 5 | | 603 |
| [az boards area project show](https://docs.microsoft.com/cli/azure/boards/area/project#az-boards-area-project-show) | 4 | | 603 |
| [az boards area project update](https://docs.microsoft.com/cli/azure/boards/area/project#az-boards-area-project-update) | 6 | | 603 |
| [az boards area team list](https://docs.microsoft.com/cli/azure/boards/area/team#az-boards-area-team-list) | 4 | | 368 |
| [az boards area team remove](https://docs.microsoft.com/cli/azure/boards/area/team#az-boards-area-team-remove) | 5 | | 368 |
| [az boards area team update](https://docs.microsoft.com/cli/azure/boards/area/team#az-boards-area-team-update) | 7 | | 368 |
| [az boards iteration project create](https://docs.microsoft.com/cli/azure/boards/iteration/project#az-boards-iteration-project-create) | 7 | **yes** | 1095 |
| [az boards iteration project delete](https://docs.microsoft.com/cli/azure/boards/iteration/project#az-boards-iteration-project-delete) | 5 | | 1095 |
| [az boards iteration project list](https://docs.microsoft.com/cli/azure/boards/iteration/project#az-boards-iteration-project-list) | 5 | | 1095 |
| [az boards iteration project show](https://docs.microsoft.com/cli/azure/boards/iteration/project#az-boards-iteration-project-show) | 4 | | 1095 |
| [az boards iteration project update](https://docs.microsoft.com/cli/azure/boards/iteration/project#az-boards-iteration-project-update) | 8 | | 1095 |
| [az boards iteration team add](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-add) | 5 | **yes** | 836 |
| [az boards iteration team list](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-list) | 5 | | 836 |
| [az boards iteration team list-work-items](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-list-work-items) | 5 | | 836 |
| [az boards iteration team remove](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-remove) | 5 | | 836 |
| [az boards iteration team set-backlog-iteration](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-set-backlog-iteration) | 5 | | 836 |
| [az boards iteration team set-default-iteration](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-set-default-iteration) | 6 | | 836 |
| [az boards iteration team show-backlog-iteration](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-show-backlog-iteration) | 4 | | 836 |
| [az boards iteration team show-default-iteration](https://docs.microsoft.com/cli/azure/boards/iteration/team#az-boards-iteration-team-show-default-iteration) | 4 | | 836 |
| [az boards query](https://docs.microsoft.com/cli/azure/boards#az-boards-query) | 6 | | 4954 |
| [az boards work-item create](https://docs.microsoft.com/cli/azure/boards/work-item#az-boards-work-item-create) | 13 | **yes** | 6495 |
| [az boards work-item delete](https://docs.microsoft.com/cli/azure/boards/work-item#az-boards-work-item-delete) | 6 | | 6495 |
| [az boards work-item relation add](https://docs.microsoft.com/cli/azure/boards/work-item/relation#az-boards-work-item-relation-add) | 6 | **yes** | 1776 |
| [az boards work-item relation list-type](https://docs.microsoft.com/cli/azure/boards/work-item/relation#az-boards-work-item-relation-list-type) | 2 | | 1776 |
| [az boards work-item relation remove](https://docs.microsoft.com/cli/azure/boards/work-item/relation#az-boards-work-item-relation-remove) | 6 | | 1776 |
| [az boards work-item relation show](https://docs.microsoft.com/cli/azure/boards/work-item/relation#az-boards-work-item-relation-show) | 3 | | 1776 |
| [az boards work-item show](https://docs.microsoft.com/cli/azure/boards/work-item#az-boards-work-item-show) | 7 | | 6495 |
| [az boards work-item update](https://docs.microsoft.com/cli/azure/boards/work-item#az-boards-work-item-update) | 13 | | 6495 |

### Related command

az boards

### Errors

n/a

### Issue script & Debug output

n/a

### Expected behavior

n/a

### Environment Summary

Azure CLI 2.63.0

### Additional context

_No response_