set search_path documentation missing from development docs

I was trying to look at the documentation for set search_path and there
isn't anything under the set command in the sql command documentation.
In the the data definition section on schemas there is a link to such
documentation, but there is no matching fragment name in the referenced
page.
The link is:
http://developer.postgresql.org/docs/postgres/functions-misc.html#SET-SEARCH-PATH

This is from section 2.8.3 of the User's Guide.