docker-slim: add page (#6590)

pages/common/docker-slim.md

@@ -0,0 +1,24 @@
+# docker-slim
+
+> Analyze and optimize Docker images.
+> More information: <https://github.com/docker-slim/docker-slim>.
+
+- Start DockerSlim on interactive mode:
+
+`docker-slim`
+
+- Analyze Docker layers from a specific image:
+
+`docker-slim xray --target {{image:tag}}`
+
+- Lint a Dockerfile:
+
+`docker-slim lint --target {{path/to/Dockerfile}}`
+
+- Analyze and generate an optimized Docker image:
+
+`docker-slim build {{image:tag}}`
+
+- Display help for a subcommand:
+
+`docker-slim {{subcommand}} --help`