fix(readme): use the right setup script link

Author: Pothulapati

README.md

@@ -3,9 +3,9 @@
 Run the setup script to download the provider into your local terraform folder:
 
 ```bash
-wget -qO- https://raw.githubusercontent.com/dragonflydb/terraform-provider-dfcloud/man/setup.sh | sh
+wget -qO- https://raw.githubusercontent.com/dragonflydb/terraform-provider-dfcloud/refs/heads/main/setup.sh | sh
 
 # or
 
-curl https://raw.githubusercontent.com/dragonflydb/terraform-provider-dfcloud/man/setup.sh | sh
+curl https://raw.githubusercontent.com/dragonflydb/terraform-provider-dfcloud/refs/heads/main/setup.sh| sh
 ```