rename Catalog to ClusterCatalog

Signed-off-by: everettraven <everettraven@gmail.com>

README.md

@@ -12,12 +12,12 @@ Catalogd helps customers discover installable content by hosting catalog metadat
 
 1. To install catalogd, navigate to the [releases](https://github.com/operator-framework/catalogd/releases/) page, and follow the install instructions included in the release you want to install.
 
-1. Create a `Catalog` object that points to the OperatorHub Community catalog by running the following command:
+1. Create a `ClusterCatalog` object that points to the OperatorHub Community catalog by running the following command:
 
     ```sh
     $ kubectl apply -f - << EOF
     apiVersion: catalogd.operatorframework.io/v1alpha1
-    kind: Catalog
+    kind: ClusterCatalog
     metadata:
       name: operatorhubio
     spec:
@@ -28,10 +28,10 @@ Catalogd helps customers discover installable content by hosting catalog metadat
     EOF
     ```
 
-1. Verify the `Catalog` object was created successfully by running the following command:
+1. Verify the `ClusterCatalog` object was created successfully by running the following command:
 
     ```sh
-    $ kubectl describe catalog/operatorhubio
+    $ kubectl describe clustercatalog/operatorhubio
     ```
     
     *Example output*
@@ -41,7 +41,7 @@ Catalogd helps customers discover installable content by hosting catalog metadat
     Labels:       <none>
     Annotations:  <none>
     API Version:  catalogd.operatorframework.io/v1alpha1
-    Kind:         Catalog
+    Kind:         ClusterCatalog
     Metadata:
       Creation Timestamp:  2023-06-23T18:35:13Z
       Generation:          1