Clear every Sphinx warning

docs/conf.py

@@ -44,6 +44,10 @@
     'myst_parser'
 ]
 
+# MyST does not generate heading anchors unless asked, so a link to another page's
+# section, such as value_scaling_and_auto_sizing.md#value-scaling, silently fails.
+myst_heading_anchors = 3
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
@@ -61,7 +65,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = "en"
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.

docs/examples/plot_with_characters_or_icons.md

@@ -40,7 +40,7 @@ See [issue #17](https://github.com/gyli/PyWaffle/issues/17) for the original rep
 Waffle Chart with icons is also known as Pictogram Chart. 
 
 PyWaffle supports plotting with icons through [Font Awesome](https://fontawesome.com/), which is an
-optional dependency — install it with `pip install "pywaffle[icons]"`. See page [Font Awesome Integration](font_awesome_integration.html) for how Font Awesome is integrated into PyWaffle.
+optional dependency — install it with `pip install "pywaffle[icons]"`. See page [Font Awesome Integration](../font_awesome_integration.rst) for how Font Awesome is integrated into PyWaffle.
 
 For searching available icon name in Font Awesome, please visit [https://fontawesome.com/search](https://fontawesome.com/search).
 

pywaffle/waffle.py

@@ -170,12 +170,11 @@ class Waffle(Figure):
     :param icon_style: The style of icons to be used.
 
         | Font Awesome Icons find an icon by style and icon name.
-        The style could be 'brands', 'regular' and 'solid'.
-        Visit https://fontawesome.com/cheatsheet for detail.
-
+          The style could be 'brands', 'regular' and 'solid'.
+          Visit https://fontawesome.com/cheatsheet for detail.
         | If it is a string, it would search icons within given style.
-        If it is a list or a tuple, the length should be
-        the same as values and it means the style for each icon.
+          If it is a list or a tuple, the length should be
+          the same as values and it means the style for each icon.
 
         | [Default 'solid']
     :type icon_style: str|list[str]|tuple[str], optional
@@ -817,7 +816,7 @@ def _validate_icon_style(self, par: Dict):
 
     @classmethod
     def make_waffle(cls, ax: Axes, **kwargs):
-        """
+        r"""
         Plot waffle chart on given axis.
         Run it with codes like:
         ``Waffle.make_waffle(ax=ax, rows=5, values=[48, 46, 6])``
@@ -828,7 +827,7 @@ def make_waffle(cls, ax: Axes, **kwargs):
         :param ax: An instance of Matplotlib Axes
         :type ax: matplotlib.axes.Axes
 
-        :param **kwargs: Waffle properties
+        :param \*\*kwargs: Waffle properties
 
         """
         if kwargs.get("plots"):