docker-top: add page; docker-container-top: add alias page (#11136)

pages/common/docker-container-top.md

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+# docker container top
+
+> This command is an alias of `docker top`.
+> More information: <https://docs.docker.com/engine/reference/commandline/top>.
+
+- View documentation for the original command:
+
+`tldr docker top`

pages/common/docker-top.md

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+# docker top
+
+> Display the running processes of a container.
+> More information: <https://docs.docker.com/engine/reference/commandline/top>.
+
+- Display the running processes of a container:
+
+`docker top {{container}}`
+
+- Display help:
+
+`docker top --help`