fix: Typo in callout docs

Fixes quarto-dev#11504

src/resources/editor/tools/attrs.yml

@@ -88,7 +88,7 @@
     - value: .callout-note
       doc: "Include additional explanation or context."
     - value: .callout-tip
-      doc: "Provide a productivity tip or other helpful guideance. "
+      doc: "Provide a productivity tip or other helpful guidance. "
     - value: .callout-important
       doc: "Emphasize content that readers should be sure to read."
     - value: .callout-caution