Apply suggestions from code review

Co-Authored-By: glarizza <[email protected]>

Gemfile

@@ -15,5 +15,5 @@
 ruby '2.5.3'
 
 source 'https://rubygems.org/' do
-  gem 'kitchen-terraform', '~> 4.0.3'
+  gem 'kitchen-terraform', '~> 4.3'
 end

test/fixtures/all_examples/test_output.tf

@@ -18,5 +18,6 @@
 // They do not need to be included in real-world uses of this module
 
 output "project_id" {
-  value = "${var.project_id}"
+  value       = "${var.project_id}"
+  description = "The ID of the project to which resources are applied."
 }

test/fixtures/simulated_ci_environment/README.md

@@ -29,7 +29,7 @@ With these variables set, change to the root of the module and execute the `make
 This make target is the same that is executed by this module's CI pipeline during integration testing, and
 will run the integration tests from your machine.
 
-Alternatively, to run the integration tests directly from the docker container used by the module's CI pipeline, copy
+Alternatively, to run the integration tests directly from the Docker container used by the module's CI pipeline, copy
 the credentials file to the root of the module and then run the `make test_integration_docker` target:
 
 ```
@@ -41,8 +41,6 @@ cp $GOOGLE_CREDENTIALS_PATH ./credentials.json
 make test_integration_docker
 ```
 
-For example:
-
 [^]: (autogen_docs_start)