Link to catalog gitHub page (#98)

* Link to catalog gitHub page

* Add link to README

Author: frankfarzan

README.md

@@ -35,7 +35,7 @@ can be run as pre-commit or post-commit steps to validate configurations before
   Our design philosophy is to keep configuration as data, which enables us to programmatically manipulate it using stateless programs called _functions_.
 - **Unix philosophy:** Functions should be small, reusable, and composable.
   By implementing the [Configuration Functions Specification][spec],
-  we can develop an ever-growing catalog of useful, interoperable functions.
+  we can develop a [catalog][catalog] of useful, interoperable functions.
 
 ### Why a Typescript SDK
 
@@ -68,3 +68,4 @@ advantages:
 [spec]: https://github.com/kubernetes-sigs/kustomize/blob/master/cmd/config/docs/api-conventions/functions-spec.md
 [kpt-users]: https://groups.google.com/forum/#!forum/kpt-users
 [demo-run]: https://storage.googleapis.com/kpt-functions/docs/run.gif
+[catalog]: https://googlecontainertools.github.io/kpt-functions-catalog/

docs/develop.md

@@ -271,7 +271,7 @@ npm run kpt:docker-build -- --tag=latest
 [kustomize-run]: https://github.com/kubernetes-sigs/kustomize/blob/master/cmd/config/docs/api-conventions/functions-impl.md
 [demo-funcs]: https://github.com/GoogleContainerTools/kpt-functions-sdk/tree/master/ts/demo-functions/src
 [label-namespace]: https://github.com/GoogleContainerTools/kpt-functions-sdk/tree/master/ts/demo-functions/src/label_namespace.ts
-[catalog]: https://github.com/GoogleContainerTools/kpt-functions-catalog
+[catalog]: https://googlecontainertools.github.io/kpt-functions-catalog/
 [api-kptfunc]: https://googlecontainertools.github.io/kpt-functions-sdk/docs/api/interfaces/_types_.kptfunc.html
 [vscode]: https://code.visualstudio.com/
 [npm-packages]: https://github.com/GoogleContainerTools/kpt-functions-sdk/packages

docs/run.md

@@ -297,7 +297,7 @@ You should see the following changes:
 
 [concept-source]: concepts.md#source-function
 [concept-pipeline]: concepts.md#pipeline
-[catalog]: https://github.com/GoogleContainerTools/kpt-functions-catalog
+[catalog]: https://googlecontainertools.github.io/kpt-functions-catalog/
 [label-namespace]: https://github.com/GoogleContainerTools/kpt-functions-sdk/tree/master/ts/hello-world/src/label_namespace.ts
 [download-kpt]: https://github.com/GoogleContainerTools/kpt
 [cloud-build]: https://cloud.google.com/cloud-build/