added UTF-8 encoding to the Jinja2 template example

rl-utility-man · web-flow · commit 29372c323a35 · 2024-03-04T18:47:53.000-05:00
I followed this example and got nonsense characters instead of negative signs because I failed to specify UTF-8 encoding, as discussed in plotly#4118
diff --git a/doc/python/interactive-html-export.md b/doc/python/interactive-html-export.md
@@ -64,6 +64,11 @@ You can insert Plotly output and text related to your data into HTML templates u
 ```
 &lt;!DOCTYPE html&gt;
 &lt;html&gt;
+&lt;head&gt;
+&lt;meta charset="utf-8" /&gt;   &lt;!--It is necessary to use the UTF-8 encoding with plotly graphics to get e.g. negative signs to render correctly --&gt;
+&lt;meta name="viewport" content="width=device-width, initial-scale=1.0" /&gt;
+&lt;/head&gt;
+
 &lt;body&gt;
 &lt;h1&gt;Here's a Plotly graph!&lt;/h1&gt;
 {{ fig }}
