Apply suggestions from code review

docs/source/development/add-ons/test-add-ons-18.md

@@ -16,7 +16,7 @@ This guide assumes that you've used {term}`Cookieplone` to create your add-on bo
 Volto uses {term}`Jest` for unit tests.
 You can create unit tests for testing your add-on.
 
-Run the following command:
+Run the following command.
 
 ```shell
 make test
@@ -25,7 +25,7 @@ make test
 ## Override Jest configuration
 
 In {term}`CI` or for testing add-ons, it's useful to modify Jest's {file}`package.json` configuration file.
-You can use the boilerplate provided {file}`jest.config.js` file.
+You can use the file {file}`jest.config.js` provided by the boilerplate.
 The test command will load it and apply it.
 
 ```{warning}
@@ -35,27 +35,27 @@ Do not modify the existing keys in there if you don't know what you are doing, s
 Both configurations are merged in a way that the keys of the configuration provided override the initial {file}`package.json` configuration, either in Volto or in your projects.
 
 ```{note}
-For more background on testing add-ons in Volto 18, see {doc}`../../contributing/testing` since the developer experience has been unified for both add-ons and Volto core.
+For more background on testing add-ons in Volto 18, see {doc}`../../contributing/testing`, since the developer experience has been unified for both add-ons and Volto core.
 ```
 
 ### Acceptance tests
 
 Use {term}`Cypress` to run acceptance tests.
 
 To start the backend server, run the following command.
-This will start a docker container with a vanilla Plone backend.
+This will start a Docker container with a vanilla Plone backend.
 
 ```shell
 make acceptance-backend-start
 ```
 
-To start the frontend acceptance server (in development mode), run the following command.
+To start the frontend acceptance server in development mode, run the following command.
 
 ```shell
 make acceptance-frontend-dev-start
 ```
 
-You run the frontend in development mode, so you can develop while writing tests.
+You can run the frontend in development mode, so you can develop while writing tests.
 Run the following command to run Cypress tests afterward.
 
 ```shell