[Docs] Fix URL path to aliases
This API URL contains /aliases/aliases and that seems to be a duplicate.
@@ -56,4 +56,4 @@ configurations in `alias3` and `alias4`.
If you only want to get information about specific aliases, you can specify
the aliases in comma-delimited format as a URL parameter, e.g.,
-/_cat/aliases/aliases/alias1,alias2.
\ No newline at end of file
+/_cat/aliases/alias1,alias2.
