Update active-directory-optional-claims.md

Author: v-stsavell

articles/active-directory/develop/active-directory-optional-claims.md

@@ -107,7 +107,7 @@ Some optional claims can be configured to change the way the claim is returned.
 |                | `include_externally_authenticated_upn`  | Includes the guest UPN as stored in the resource tenant. For example, `foo_hometenant.com#EXT#@resourcetenant.com` |
 |                | `include_externally_authenticated_upn_without_hash` | Same as above, except that the hash marks (`#`) are replaced with underscores (`_`), for example `[email protected]`|
 | `aud`          |                          | In v1 access tokens, this is used to change the format of the `aud` claim.  This has no effect in v2 tokens or either version's ID tokens, where the `aud` claim is always the client ID. Use this configuration to ensure that your API  can more easily perform audience validation. Like all optional claims that affect the access token, the resource in the request must set this optional claim, since resources own the access token.|
-|                | `use_guid`               | Emits the client ID of the resource (API) in GUID format as the `aud` claim always instead of it being runtime dependent. For example, if a resource sets this flag, and it's client ID is `bb0a297b-6a42-4a55-ac40-09a501456577`, any app that requests an access token for that resource will receive an access token with `aud` : `bb0a297b-6a42-4a55-ac40-09a501456577`. </br></br> Without this claim set, an API could get tokens with an `aud` claim of `api://MyApi.com`, `api://MyApi.com/`, `api://myapi.com/AdditionalRegisteredField` or any other value set as an app ID URI for that API, as well as the client ID of the resource. |
+|                | `use_guid`               | Emits the client ID of the resource (API) in GUID format as the `aud` claim always instead of it being runtime dependent. For example, if a resource sets this flag, and its client ID is `bb0a297b-6a42-4a55-ac40-09a501456577`, any app that requests an access token for that resource will receive an access token with `aud` : `bb0a297b-6a42-4a55-ac40-09a501456577`. </br></br> Without this claim set, an API could get tokens with an `aud` claim of `api://MyApi.com`, `api://MyApi.com/`, `api://myapi.com/AdditionalRegisteredField` or any other value set as an app ID URI for that API, as well as the client ID of the resource. |
 
 #### Additional properties example