Fix multiple typos in the `flask and aiohttp` tutorials

docs/main/changelog.rst

@@ -11,6 +11,7 @@ Development version
 -------------------
 - Add ``asyncio`` + ``Dependency Injector`` example ``monitoring-daemon-asyncio``.
 - Fix a typo in the docblock of the ``Configuration`` provider.
+- Fix multiple typos in the ``flask`` and ``aiohttp`` tutorials.
 - Fix ``Makefile`` to run ``aiohttp`` integration tests on Python 3.5+.
 
 3.27.0

docs/tutorials/aiohttp.rst

@@ -908,9 +908,9 @@ You should see:
 Conclusion
 ----------
 
-In this tutorial we've build an ``aiohttp`` REST API application following the dependency
+In this tutorial we've built an ``aiohttp`` REST API application following the dependency
 injection principle.
-We've used ``Dependency Injector`` as a dependency injection framework.
+We've used the ``Dependency Injector`` as a dependency injection framework.
 
 The benefit you get with the ``Dependency Injector`` is the container. It starts to payoff
 when you need to understand or change your application structure. It's easy with the container,

docs/tutorials/flask.rst

@@ -1085,8 +1085,8 @@ Conclusion
 
 We are done.
 
-In this tutorial we've build ``Flask`` application following the dependency injection principle.
+In this tutorial we've built ``Flask`` application following the dependency injection principle.
-We've used ``Dependency Injector`` as a dependency injection framework.
+We've used the ``Dependency Injector`` as a dependency injection framework.
 
 The main part of this application is the container. It keeps all the application components and
 their dependencies in one place: