docs update

Author: forman

chartlets.py/chartlets/components/charts/vega.py

@@ -1,6 +1,8 @@
 from dataclasses import dataclass
 from typing import Any
 
+
+# Respect that "altair" is an optional dependency.
 try:
     # noinspection PyUnresolvedReferences
     import altair
@@ -15,7 +17,11 @@
 @dataclass(frozen=True)
 class VegaChart(Component):
     """A container for a
-    [Vega Altair](https://altair-viz.github.io/) chart."""
+    [Vega Altair](https://altair-viz.github.io/) chart.
+
+    Note: to use this component the `altair` package
+    must be available in your python environment.
+    """
 
     theme: str | None = None
     """The name of a [Vega theme](https://vega.github.io/vega-themes/)."""

docs/api/components.md

@@ -9,8 +9,11 @@ and providers:
 - Application providers use the abstract base classes `Component` and 
   `Container` to implement new specific components.
 
+## Chart Components
 
-## Specific Components
+::: chartlets.components.VegaChart
+
+## Widget Components
 
 ::: chartlets.components.Box
 
@@ -20,8 +23,6 @@ and providers:
 
 ::: chartlets.components.IconButton
 
-::: chartlets.components.Plot
-
 ::: chartlets.components.Select
 
 ::: chartlets.components.Typography