Fix old imports in example (#97)

Author: Eclips4

README.md

@@ -40,7 +40,9 @@ Here is a simple example of how `di` works:
 ```python
 from dataclasses import dataclass
 
-from di import Container, Dependent, SyncExecutor
+from di import Container
+from di.dependent import Dependent
+from di.executors import SyncExecutor
 
 
 class A:

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "di"
-version = "0.75.2"
+version = "0.75.3"
 description = "Dependency injection toolkit"
 authors = ["Adrian Garcia Badaracco <adrian@adriangb.com>"]
 readme = "README.md"