docs: edge comment about details (#569)

Co-authored-by: Eduardo San Martin Morote <[email protected]>

Author: mwoodpatrick

docs/guide/markdown.md

@@ -140,7 +140,7 @@ This is a dangerous warning
 :::
 
 ::: details
-This is a details block, which does not work in Internet Explorer or Edge.
+This is a details block, which does not work in Internet Explorer or old versions of Edge.
 :::
 ```