Usage docs

README.rst

@@ -15,7 +15,7 @@ Installation
 Usage
 ============
 
-You can use cryptbase with django ORM or witg SQLAlchemy.
+You can use cryptbase with django ORM or with SQLAlchemy.
 
 To use with SQLAlchemy:
 

docs/usage.rst

@@ -2,6 +2,17 @@
 Usage
 =====
 
-To use cryptbase in a project::
+You can use cryptbase with django ORM or with SQLAlchemy.
 
-	import cryptbase
+To use with SQLAlchemy:
+
+    from cryptbase import EncryptedText
+    sensitive = Column(EncryptedText(key=DB_KEY))
+
+To use with django:
+
+    from cryptbase import EncryptedTextField
+    sensitive = EncryptedTextField(key=DB_KEY)
+
+DB_KEY is 32 bytes encryption key as hex encoded string. Fields behave as TEXT fields, data are transparently encrypted
+when storing into the database and decrypted on retrieval.