Update fail_fast_testing.md by removing future tense that Vale identified

doc/user/project/merge_requests/fail_fast_testing.md

@@ -49,7 +49,7 @@ This template requires:
 
 ## Configuring Fast RSpec Failure
 
-We'll use the following plain RSpec configuration as a starting point. It installs all the
+We use the following plain RSpec configuration as a starting point. It installs all the
 project gems and executes `rspec`, on merge request pipelines only.
 
 ```yaml
@@ -86,13 +86,13 @@ For illustrative purposes, let's say our Rails app spec suite consists of 100 sp
 
 If no Ruby files are changed:
 
-- `rspec-rails-modified-paths-specs` will not run any tests.
-- `rspec-complete` will run the full suite of 1000 tests.
+- `rspec-rails-modified-paths-specs` does not run any tests.
+- `rspec-complete` runs the full suite of 1000 tests.
 
 If one Ruby model is changed, for example `app/models/example.rb`, then `rspec-rails-modified-paths-specs`
-will run the 100 tests for `example.rb`:
+runs the 100 tests for `example.rb`:
 
 - If all of these 100 tests pass, then the full `rspec-complete` suite of 1000 tests is allowed to run.
-- If any of these 100 tests fail, they will fail quickly, and `rspec-complete` will not run any tests.
+- If any of these 100 tests fail, they fail quickly, and `rspec-complete` does not run any tests.
 
 The final case saves resources and time as the full 1000 test suite does not run.