Mention the quotes requirement in the docs too

twbs · Sep 15, 2020 · 65d130f · 65d130f
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commit 65d130f
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diff --git a/site/content/docs/5.0/customize/sass.md b/site/content/docs/5.0/customize/sass.md
@@ -207,7 +207,7 @@ You can also specify a base color with our color map functions:
 
 ### Escape SVG
 
-We use the `escape-svg` function to escape the `<`, `>` and `#` characters for SVG background images.
+We use the `escape-svg` function to escape the `<`, `>` and `#` characters for SVG background images. When using the `escape-svg` function, data URIs must be quoted.
 
 ### Add and Subtract functions