docs: remove deprecated catalog v1 resources (#2316)

* fix: remove deprecated catalog v1 docs
* fix: update catalog references in docs

---------

Co-authored-by: Matt Trachier <matt.trachier@suse.com>

Author: alemorcuq

docs/index.md

@@ -57,9 +57,10 @@ provider "rancher2" {
 }
 
 # Create a new rancher2 resource using admin provider config
-resource "rancher2_catalog" "foo" {
+resource "rancher2_catalog_v2" "foo" {
   provider = "rancher2.admin"
 
+  cluster_id = "<CLUSTER_ID>"
   name = "test"
   url = "http://foo.com:8080"
 }

docs/resources/app.md

@@ -53,7 +53,7 @@ The following attributes are exported:
 
 ## Timeouts
 
-`rancher2_catalog` provides the following
+`rancher2_catalog_v2` provides the following
 [Timeouts](https://www.terraform.io/docs/configuration/resources.html#operation-timeouts) configuration options:
 
 - `create` - (Default `10 minutes`) Used for creating v2 catalogs.