[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

src/posts/flexible-indexing/index.md

@@ -35,7 +35,7 @@ To extract the answer in code we can loop over _all_ the values of `X` to find `
 
 > 💡 **Note:**
 > With only 6 coordinates, we easily see `X[3]=8`, but for large datasets we should loop over _all_ the coordinates to ensure there are no repeated values!
-This initial pass over all the coordinates to build an _index_ takes some time and may not always be desireable.
+> This initial pass over all the coordinates to build an _index_ takes some time and may not always be desireable.
 
 ## Pandas.Index