Docs: Update unclear statement in how-terraform-works.mdx (#1015)

Hello. I'm reading the documentation the first time and the statement
`Terraform Plugins expose IMPLEMENTATION` doesn't feel right to me in
this context. IMO, plugins typically not expose, but provide or
encapsulate implementation for interacting with a specific service.

Here's alternative wording.

Author: bbasata

content/terraform-docs-common/docs/plugin/how-terraform-works.mdx

@@ -15,7 +15,7 @@ versions of existing plugins.
 Terraform is logically split into two main parts: **Terraform Core** and
 **Terraform Plugins**. Terraform Core uses remote procedure calls (RPC) to
 communicate with Terraform Plugins, and offers multiple ways to discover and
-load plugins to use.  Terraform Plugins expose an implementation for a specific
+load plugins to use. Terraform Plugins provide an implementation for interacting with a specific
 service, such as AWS, or provisioner, such as bash.
 
 ## Terraform Core
@@ -113,4 +113,4 @@ elsewhere, `terraform init -upgrade` will not download a newer version of it.
 
 [0]: https://en.wikipedia.org/wiki/Static_build#Static_building
 
-[1]: https://golang.org/
+[1]: https://golang.org/