Add basic usage info to readme.

README.md

@@ -1,3 +1,52 @@
 # everstone
 
-The simple database query generator.
+A simple database query generator.
+
+
+### This project is still in active develpment and is not ready of usage.
+
+## Installation
+```sh
+pip install everstone
+```
+
+**Requires Python 3.9.0+**
+
+## Usage
+
+### Connecting a Database
+```py
+from everstone import db
+
+db.connect("test_database", "user_one", "abcd5432")
+```
+
+### Creating a Schema:
+
+```python
+from everstone import db
+
+auth_schema = db.Schema("auth")
+await auth_schema.create()
+```
+#### Resulting SQL
+```sql
+CREATE TABLE user (user_id INTEGER PRIMARY KEY, name TEXT);
+```
+
+### Creating a Table:
+
+```py
+from everstone import constraints, db, types
+from everstone import Column
+user_table = db.Table("user")
+user_table.add_columns(
+    Column("user_id", types.Integer, constraints.PrimaryKey),
+    Column("name", types.Text)
+)
+await user_table.create()
+```
+#### Resulting SQL
+```sql
+CREATE TABLE user (user_id INTEGER PRIMARY KEY, name TEXT);
+```