Add redact documentation (microsoft#582)

* Add redact documentation

* PR feedback

README.md

@@ -115,6 +115,20 @@ This sample command provides the minimum mandatory arguments required to validat
 
 Currently only SPDX2.2 is supported.
 
+### SBOM Redact
+
+Use the tool to redact any references to files from a given SBOM or set of SBOMs with either of the following commands:
+
+```
+sbom-tool redact -sd <directory containing SBOMs to redact> -o <output path>
+```
+
+```
+sbom-tool redact -sp <path to the SBOM to redact> -o <output path>
+```
+
+This command will generate a mirrored set of SBOMs in the output directory, but with the file references removed. Note that the SBOM directory and output path arguments can not reference the same directory and the output path should point to an existing, empty directory.
+
 ## Integrating SBOM tool to your CI/CD pipelines.
 
 You can follow these guides to integrate the SBOM tool into your CI/CD pipelines 

docs/sbom-tool-arguments.md

@@ -81,5 +81,19 @@ Actions
     FollowSymlinks (-F)                       If set to false, we will not follow symlinks while traversing the build drop folder. Default is set to 'true'.
     ManifestInfo (-mi)                        A list of the name and version of the manifest format that we are using.
 
+  Redact -options - Redact file information from given SBOM(s).
+
+    Option            Description
+    SbomPath (-sp)    The file path of the SBOM to redact.
+    SbomDir (-sd)     The directory containing the sbom(s) to redact.
+    OutputPath (-o)   Gets or sets the directory where the redacted SBOM file(s) will be generated.
+    Verbosity (-V)    Display this amount of detail in the logging output.
+                      Verbose
+                      Debug
+                      Information
+                      Warning
+                      Error
+                      Fatal
+
   Version  - Displays the version of the tool being used. Can be used as '--version'
 ```

src/Microsoft.Sbom.Api/Config/SbomToolCmdRunner.cs

@@ -73,7 +73,6 @@ public GenerationArgs Generate(GenerationArgs generationArgs)
     /// </summary>
     [ArgActionMethod]
     [ArgDescription("Redact file information from given SBOM(s).")]
-    [OmitFromUsageDocs]
     public RedactArgs Redact(RedactArgs redactArgs)
     {
         return redactArgs;