Add create_user

create_user.md

@@ -0,0 +1,25 @@
+# Create User
+
+Creates a new user in the database.
+Endpoint
+
+```js
+POST /api/create_user
+```
+
+## Request Body
+
+```json
+{
+  "username": "example_user",
+  "password": "example_password"
+}
+```
+
+## Example Request
+
+```bash
+curl -X POST "https://example.com/api/create_user" \
+-H "Content-Type: application/json" \
+-d '{"username": "example_user", "password": "example_password"}'
+```