Update geps/gep-1426.md

Co-authored-by: Mike Morris <[email protected]>

Author: keithmattix

geps/gep-1426.md

@@ -119,7 +119,7 @@ Currently (v0.7.0), this spec only considers the `Service` resource to be under
 
 #### Extended Conformance
 
-In addition to Service, there are other optional parentRef resources that, if used by implementations, MUST adhere to the spec’s prescriptions. At the time of writing (v0.70), there are two resources in extended conformance: ServiceImport (part of the mcs-api, currently in alpha) and Gateway . The semantics of ServiceImport parentRef binding can be found in GEP 1748 (Note: Headless ServiceImports are out of scope and not currently a part of the spec). The semantics for Gateways in the context of GAMMA implementations are laid out below:
+In addition to Service, there are other optional parentRef resources that, if used by implementations, MUST adhere to the spec’s prescriptions. At the time of writing (v0.7.0), there is one resource in extended conformance: `ServiceImport` (part of the [MCS API](https://github.com/kubernetes-sigs/mcs-api), currently in alpha). The semantics of `ServiceImport` `parentRef` binding can be found in [GEP-1748](https://gateway-api.sigs.k8s.io/geps/gep-1748/) (Note: Headless `ServiceImport` is out of scope and not currently a part of the spec).
 
 ##### `Gateways`