docs: fix broken link in dockerd.md

The Engine API docs are not available in this GitHub repository,
so linking to the docs.docker.com website instead.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 98a3d6a48a30274f0c357ac69b6579e5e6272550)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: c280cdfd660333bb03a518ea69c001d07ecf4f3b
Component: cli

Author: thaJeztah

components/cli/docs/reference/commandline/dockerd.md

@@ -121,7 +121,7 @@ the `daemon.json` file.
 
 ### Daemon socket option
 
-The Docker daemon can listen for [Docker Engine API](../api/)
+The Docker daemon can listen for [Docker Engine API](https://docs.docker.com/engine/api/)
 requests via three different types of Socket: `unix`, `tcp`, and `fd`.
 
 By default, a `unix` domain socket (or IPC socket) is created at