Update docs and add example of using a remote database

Author: avinassh

README.md

@@ -49,6 +49,18 @@ con = libsql.connect("hello.db")
 cur = con.cursor()
 ```
 
+#### Remote database
+
+```python
+import libsql_experimental as libsql
+
+url = os.getenv("LIBSQL_URL")
+auth_token = os.getenv("LIBSQL_AUTH_TOKEN")
+
+con = libsql.connect(database=url, auth_token=auth_token)
+cur = con.cursor()
+```
+
 #### Embedded replica
 
 ```python

examples/remote_connect.py

@@ -0,0 +1,17 @@
+"""
+A short example showing how to connect to a remote libsql or Turso database
+
+Set the LIBSQL_URL and LIBSQL_AUTH_TOKEN environment variables to point to a database.
+"""
+import os
+
+import libsql_experimental as libsql
+
+print(F"connecting to {os.getenv('LIBSQL_URL')}")
+conn = libsql.connect(database=os.getenv('LIBSQL_URL'),
+                      auth_token=os.getenv("LIBSQL_AUTH_TOKEN"))
+conn.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER);")
+conn.execute("INSERT INTO users(id) VALUES (10);")
+conn.commit()
+
+print(conn.execute("select * from users").fetchall())