Update readme for usage via Docker (CFINSPEC-516) (#6329)

* DOCS: Update readme for usage via Docker (CFINSPEC-516)

Signed-off-by: Sonu Saha <sonu.saha@progress.com>

* DOCS: Explain updated readme (CFINSPEC-516)

Signed-off-by: Sonu Saha <sonu.saha@progress.com>

Signed-off-by: Sonu Saha <sonu.saha@progress.com>
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Sonu Saha 2022-11-30 05:07:44 +05:30 committed by GitHub
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@ -134,6 +134,14 @@ Finished in 0.04321 seconds (files took 0.54917 seconds to load)
2 examples, 0 failures
```
To scan the docker containers running on the host using the containerized InSpec, we need to bind-mount the Unix socket `/var/run/docker.sock` from the host machine to the InSpec Container.
```
docker pull chef/inspec
function inspec { docker run -it --rm -v $(pwd):/share -v /var/run/docker.sock:/var/run/docker.sock chef/inspec "$@"; }
```
`/var/run/docker.sock` is the Unix socket the Docker daemon listens on by default.
### Install it from source