Fix root-relative links in CustomizingAzdParameters.md

Replace /docs/re-use-*.md with relative paths so the lychee link
checker resolves them. Pre-existing links flagged on this PR because
the file was modified by the GA migration commit.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Harsh-Microsoft

docs/CustomizingAzdParameters.md

@@ -18,8 +18,8 @@ By default this template will use the environment name as the prefix to prevent
 | `AZURE_ENV_GPT_MODEL_CAPACITY`             | integer | `300`                       | Sets the model capacity (minimum 1). Default: 300. Optimal: 500 for multi-document claim processing. |
 | `AZURE_ENV_CONTAINER_REGISTRY_ENDPOINT` | string  | `cpscontainerreg.azurecr.io` | Sets the public container image endpoint for pulling pre-built images.                |
 | `AZURE_ENV_IMAGETAG`        | string  | `latest_v2`                 | Sets the container image tag (e.g., `latest_v2`, `dev`, `demo`, `hotfix`).                    |
-| `AZURE_ENV_EXISTING_LOG_ANALYTICS_WORKSPACE_RID` | string  | Guide to get your [Existing Workspace Resource ID](/docs/re-use-log-analytics.md) | Reuses an existing Log Analytics Workspace instead of provisioning a new one.         |
-| `AZURE_EXISTING_AIPROJECT_RESOURCE_ID`         | string  | Guide to get your [Existing AI Project Resource ID](/docs/re-use-foundry-project.md) | Reuses an existing AI Foundry and AI Foundry Project instead of creating a new one.   |
+| `AZURE_ENV_EXISTING_LOG_ANALYTICS_WORKSPACE_RID` | string  | Guide to get your [Existing Workspace Resource ID](re-use-log-analytics.md) | Reuses an existing Log Analytics Workspace instead of provisioning a new one.         |
+| `AZURE_EXISTING_AIPROJECT_RESOURCE_ID`         | string  | Guide to get your [Existing AI Project Resource ID](re-use-foundry-project.md) | Reuses an existing AI Foundry and AI Foundry Project instead of creating a new one.   |
 | `AZURE_ENV_VM_SIZE` | string | `Standard_D2s_v5` | Overrides the jumpbox VM size (private networking only). Default: `Standard_D2s_v5`. |
 
 ## How to Set a Parameter