Fix typo in express/_doc.py

Author: samorajp

Diff for: packages/python/plotly/plotly/express/_doc.py

@@ -449,7 +449,7 @@
         "str (default `'group'`)",
         "One of `'group'` or `'overlay'`",
         "In `'overlay'` mode, boxes are on drawn top of one another.",
-        "In `'group'` mode, baxes are placed beside each other.",
+        "In `'group'` mode, boxes are placed beside each other.",
     ],
     violinmode=[
         "str (default `'group'`)",