Avoid abbreviation that is only used once

Co-authored-by: Ralf Handl <[email protected]>

src/oas.md

@@ -3942,8 +3942,8 @@ Configuration details for a supported OAuth Flow
 | <a name="oauth-flow-refresh-url"></a>refreshUrl | `string` | `oauth2` | The URL to be used for obtaining refresh tokens. This MUST be in the form of a URL. The OAuth2 standard requires the use of TLS. |
 | <a name="oauth-flow-scopes"></a>scopes | Map[`string`, `string`] | `oauth2` | **REQUIRED**. The available scopes for the OAuth2 security scheme. A map between the scope name and a short description for it. The map MAY be empty. |
 | <a name="oauth-flow-ciba-delivery-modes"></a>cibaDeliveryModes | Array[`string`] | `oauth2` (`"ciba"`) | **REQUIRED**. JSON array containing one or more of the following values: `poll`, `ping`, and `push`. |
-| <a name="oauth-flow-ciba-signing-algs"></a>cibaSigningAlgs | Array[`string`] | `oauth2` (`"ciba"`) |  JSON array containing a list of the JWS signing algorithms (alg values) supported by the OP (OpenIdConnect Provider) for signed authentication requests |
-| <a name="oauth-flow-ciba-user-code"></a>cibaUserCode | `boolean` | `oauth2` (`"ciba"`) |  Boolean value specifying whether the OP supports the use of the user_code parameter, with true indicating support. If omitted, the default value is false. |
+| <a name="oauth-flow-ciba-signing-algs"></a>cibaSigningAlgs | Array[`string`] | `oauth2` (`"ciba"`) |  JSON array containing a list of the JWS signing algorithms (alg values) supported by the OpenIdConnect Provider for signed authentication requests |
+| <a name="oauth-flow-ciba-user-code"></a>cibaUserCode | `boolean` | `oauth2` (`"ciba"`) |  Boolean value specifying whether the OpenIdConnect Provider supports the use of the user_code parameter, with true indicating support. If omitted, the default value is false. |
 
 This object MAY be extended with [Specification Extensions](#specification-extensions).