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/crud.py

@@ -0,0 +1,19 @@
+from fastapi_toolsets.crud import CrudFactory
+
+from .models import Article, Category
+
+ArticleCrud = CrudFactory(
+    model=Article,
+    cursor_column=Article.created_at,
+    searchable_fields=[  # default fields for full-text search
+        Article.title,
+        Article.body,
+        (Article.category, Category.name),
+    ],
+    facet_fields=[  # fields exposed as filter dropdowns
+        Article.status,
+        (Article.category, Category.name),
+    ],
+)
+
+ArticleFilters = ArticleCrud.filter_params()