Fix Github organisation in cloning instructions.
Fix Github organisation in cloning instructions.

Change the Github organisation from hashicorp/ to terraform-providers/ so the repository can be cloned.
drebes/terraform-provider-google,terraform-providers/terraform-provider-google,selmanj/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google,terraform-providers/terraform-provider-google,nickithewatt/terraform-provider-google,selmanj/terraform-provider-google,hashicorp/terraform-provider-google-beta,terraform-providers/terraform-provider-google,ubschmidt2/terraform-provider-google,drebes/terraform-provider-google,rosbo/terraform-provider-google,terraform-providers/terraform-provider-google,ubschmidt2/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google-beta,nickithewatt/terraform-provider-google,hashicorp/terraform-provider-google-beta,hashicorp/terraform-provider-google-beta,rosbo/terraform-provider-google,selmanj/terraform-provider-google,hashicorp/terraform-provider-google,rosbo/terraform-provider-google,terraform-providers/terraform-provider-google,ubschmidt2/terraform-provider-google,rosbo/terraform-provider-google,nickithewatt/terraform-provider-google,ubschmidt2/terraform-provider-google,drebes/terraform-provider-google,drebes/terraform-provider-google