[docs] [issue42589] doc: Wrong "from" keyword link in Exceptions doc

Change by Stéphane Blondon <stephane.blondon@gmail.com>: ---------- pull_requests: +24445 stage: backport needed -> patch review pull_request: https://github.com/python/cpython/pull/25755 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue42589> _______________________________________