Merge branch 'main' of github.com:smallstep/mongo-tls

README.md

 # docker-ca-trust
 
-This is an example of a Docker image that bootstraps an internal CA.
+This is an example of a Docker image that bootstraps with an internal [`step-ca`](https://github.com/smallstep/certificates/) server.
 It can serve as a pattern for trusting internal CAs, for any Ubuntu-based Docker image.
-The CA URL and Fingerprint can be hardcoded or supplied as build arguments.
+The CA URL and Fingerprint can be hardcoded in the `Dockerfile` or supplied as build arguments.
 
 This image can be layered on top of any Ubuntu-based server image.
 For example, change `FROM ubuntu:focal` to `FROM mongo` and you will get a MongoDB server that trusts your CA.