Add examples in documentations (#99)

* docs: fix crud

* docs: update README features

* docs: add pagination/search example

* docs: update zensical.toml

* docs: cleanup

* docs: update status to Stable + update description

* docs: add example run commands

docs_src/examples/pagination_search/db.py

@@ -0,0 +1,17 @@
+from typing import Annotated
+
+from fastapi import Depends
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from fastapi_toolsets.db import create_db_context, create_db_dependency
+
+DATABASE_URL = "postgresql+asyncpg://postgres:postgres@localhost:5432/postgres"
+
+engine = create_async_engine(url=DATABASE_URL, future=True)
+async_session_maker = async_sessionmaker(bind=engine, expire_on_commit=False)
+
+get_db = create_db_dependency(session_maker=async_session_maker)
+get_db_context = create_db_context(session_maker=async_session_maker)
+
+
+SessionDep = Annotated[AsyncSession, Depends(get_db)]