Update example usage

Author: maxachis

README.md

@@ -1,3 +1,5 @@
+from pdap_access_manager.models.auth import AuthInfo
+
 # Access-Manager
 
 This is a small package that makes it easy to access the PDAP API.
@@ -10,12 +12,17 @@ It is utilized in several other PDAP repositories
 Utilizes an `aiohttp` client session, which can either be passed into the constructor, or automatically generated when using the AccessManager as a context manager.
 
 ```python
-from pdap_access_manager import AccessManager
+from pdap_access_manager.access_manager.async_ import AccessManagerAsync
 from pdap_access_manager.models.request import RequestInfo
+from pdap_access_manager.models.auth import AuthInfo
 from pdap_access_manager.enums import DataSourcesNamespaces, RequestType
 
 async def main():
-    async with AccessManager("email", "password") as am:
+    auth_info = AuthInfo(
+        email="email",
+        password="password"
+    )
+    async with AccessManagerAsync(auth_info) as am:
         url = am.build_url(
             namespace=DataSourcesNamespaces.SEARCH,
             subdomains=['follow'],