Update gateway-api.md

Author: Revolyssup

docs/en/latest/concepts/gateway-api.md

@@ -51,7 +51,7 @@ By supporting Gateway API, the APISIX Ingress controller can realize richer func
 | GRPCRoute        | Not supported       | Not supported          | Not supported                         | v1          |
 | ReferenceGrant   | Supported           | Not supported          | Not supported                         | v1beta1     |
 | TLSRoute         | Not supported       | Not supported          | Not supported                         | v1alpha2    |
-| TCPRoute         | Supported       | Supported          | Not supported                         | v1alpha2    |
+| TCPRoute         | Supported           | Supported              | Not supported                         | v1alpha2    |
 | UDPRoute         | Not supported       | Not supported          | Not supported                         | v1alpha2    |
 | BackendTLSPolicy | Not supported       | Not supported          | Not supported                         | v1alpha3    |