Update tfstack.mdx (#35913)

Fix broken link for describe providers

---------

Co-authored-by: Brian McClain <brianmmcclain@gmail.com>

website/docs/language/stacks/reference/tfstack.mdx

@@ -40,7 +40,7 @@ Each Stack must have at least one `component` block, and the label of the compon
 | `source` | The Terraform module to [source](https://developer.hashicorp.com/terraform/language/modules/sources) for this component. Stacks do not support sourcing modules from the private registry. | string | Required |
 | `version` | If you declare a module from the public Terraform registry in the source field, you can define which module version to use.  | string | Optional |
 | `inputs` | A mapping of module input variable names to values. The keys of this map must correspond to the variable names defined by the `source` module. The values can be one of three types: A variable reference such as `var.variable_name`, a component output such as `component.component_name.output_name`, or a literal valid HCL value such as "string value".  | map | Required |
-| `providers` | A mapping of provider names to providers declared in your Stack configuration. Modules cannot configure their own providers. You must [declare providers](/terraform/language/stacks/create/declare-provider) in the top level of the Stack and pass them into each module in the Stack. | map | Required |
+| `providers` | A mapping of provider names to providers declared in your Stack configuration. Modules cannot configure their own providers. You must [declare providers](/terraform/language/stacks/create/declare-providers) in the top level of the Stack and pass them into each module in the Stack. | map | Required |
 | `depends_on` | A list of other components that HCP Terraform must execute before this component. You do not need to include another component’s outputs in this list, because Terraform automatically recognizes them.  | list | Optional |
 
 The `component` block also supports the `for_each` meta-argument.  For example, the following configuration uses `for_each` to provision modules in multiple AWS regions for a given environment.
@@ -182,7 +182,7 @@ provider "aws" "configurations" {
 }
 ```
 
-For more information on declaring providers in Stacks, refer to [Declare providers](/terraform/language/stacks/create/declare-provider).
+For more information on declaring providers in Stacks, refer to [Declare providers](/terraform/language/stacks/create/declare-providers).
 
 ## `locals` block configuration
 
@@ -295,4 +295,4 @@ removed {
 }
 ```
 
-When you move a region from `regions` to the `removed_regions` variable, HCP Terraform plans to remove that region's corresponding components.
+When you move a region from `regions` to the `removed_regions` variable, HCP Terraform plans to remove that region's corresponding components.