docs: add CBL-Mariner (#1982)

* docs: add CBL-Mariner

* docs: put it into a single page

docs/docs/vulnerability/distributions.md

@@ -0,0 +1,31 @@
+## CBL-Mariner
+Trivy scans [CBL-Mariner][mariner].
+
+### Support
+The following table provides an outline of the features Trivy offers.
+
+| Version | Container image | Virtual machine | Distroless |  Multi-arch  | Unfixed support |
+|---------|:---------------:|:---------------:|:----------:|:------------:|:---------------:|
+| 1.0     |        ✔        |        ✔        |            | amd64, arm64 |        ✔        |
+| 2.0     |        ✔        |      ✔[^1]      |            | amd64, arm64 |        ✔        |
+
+[^1]: It is supposed to work, but we've not tested it yet.
+
+### Examples
+
+```
+$ trivy image cblmariner.azurecr.io/base/core:1.0
+2022-01-31T15:02:27.754+0200    INFO    Detected OS: cbl-mariner
+2022-01-31T15:02:27.754+0200    INFO    Detecting CBL-Mariner vulnerabilities...
+2022-01-31T15:02:27.757+0200    INFO    Number of language-specific files: 0
+
+cblmariner.azurecr.io/base/core:1.0 (cbl-mariner 1.0.20220122)
+==============================================================
+Total: 14 (UNKNOWN: 0, LOW: 0, MEDIUM: 5, HIGH: 4, CRITICAL: 5) 
+```
+
+### Data source
+See [here][source].
+
+[mariner]: https://github.com/microsoft/CBL-Mariner
+[source]: detection/data-source.md

mkdocs.yml

@@ -33,6 +33,7 @@ nav:
                 - Vulnerability DB: docs/vulnerability/examples/db.md
                 - Cache: docs/vulnerability/examples/cache.md
                 - Others: docs/vulnerability/examples/others.md
+            - Distributions: docs/vulnerability/distributions.md
             - Languages:
                 - Go: docs/vulnerability/languages/golang.md
         - Misconfiguration: