Update @di.inject() documentation

docs/advanced_usage/index.rst

@@ -8,21 +8,21 @@ Current section of documentation describes advanced usage of
 @inject decorator
 -----------------
 
-``@di.inject`` decorator can be used for making *inline* dependency injections.
+``@di.inject()`` decorator can be used for making *inline* dependency 
-It *patches* decorated callable in such way that dependency injection will be
+injections.  It *patches* decorated callable in such way that dependency 
-done during every call of decorated callable.
+injection will be done during every call of decorated callable.
 
-``@di.inject`` decorator takes keyword argument, that will be injected during 
+``@di.inject()`` decorator takes keyword argument, that will be injected 
-every next call of decorated callback with the same name. Any Python object 
+during every next call of decorated callback with the same name. Any Python 
-will be injected *as is*, except ``di.Provider``'s, which will be called to 
+object will be injected *as is*, except ``di.Provider``'s, which will be 
-provide injectable values.
+called to provide injectable values.
 
 Example:
 
 .. literalinclude:: ../../examples/advanced_usage/inject_decorator_simple.py
    :language: python
 
-Example of usage ``@di.inject`` decorator with Flask:
+Example of usage ``@di.inject()`` decorator with Flask:
 
 .. literalinclude:: ../../examples/advanced_usage/inject_decorator_flask.py
    :language: python

examples/advanced_usage/inject_decorator_flask.py

@@ -1,4 +1,4 @@
-"""`@di.inject` decorator and Flask view example."""
+"""`@di.inject()` decorator and Flask view example."""
 
 import sqlite3
 import flask

examples/advanced_usage/inject_decorator_simple.py

@@ -1,4 +1,4 @@
-"""`@di.inject` decorator simple example."""
+"""`@di.inject()` decorator simple example."""
 
 import dependency_injector as di