Fix/revisit docs

Started with a follow-up to fa9b2f97, which missed applying the fix to
docs, and then added some more while reading it.

docs/incompatibilities.md

@@ -23,7 +23,7 @@ On data migrations, the linter will show a warning when:
 
 ## Codes
 
-You can ignore check through the `--exclude-migration-tests` option and specifying any of the codes:
+You can ignore checks through the `--exclude-migration-tests` option by specifying any of the codes:
 
 |               Code                |            Description                                               |
 |-----------------------------------|----------------------------------------------------------------------|

docs/makemigrations.md

@@ -1,6 +1,6 @@
 # makemigrations
 
-The linter can override behaviour of the [Django makemigrations command](https://docs.djangoproject.com/en/dev/ref/django-admin/#django-admin-makemigrations).
+The linter can override the behaviour of the [Django makemigrations command](https://docs.djangoproject.com/en/dev/ref/django-admin/#django-admin-makemigrations).
 
 Either:
  * by specifying the `--lint` option in the command line
@@ -16,6 +16,11 @@ Migrations for 'app_correct':
 Linting for 'app_correct':
 (app_correct, 0003_a_column)... ERR
         NOT NULL constraint on columns
+
+The migration linter detected that this migration is not backward compatible.
+- If you keep the migration, you will want to fix the issue or ignore the migration.
+- By default, the newly created migration file will be deleted.
+Do you want to keep the migration? [y/N] n
 Deleted tests/test_project/app_correct/migrations/0003_a_column.py
 ```