docs(OutputFormats): Add Note for license references table

`--license-references` is recommended, but mention the new fallback.

Signed-off-by: Jens Keim <[email protected]>

Author: pepper-jk

docs/source/cli-reference/output-format.rst

@@ -408,6 +408,8 @@ Comparing Different ``json`` Output Formats
         - Package Information
         - License References (SPDX ID, Links to spdx/scancode/licensedb/License Homepage)
 
+    .. include::  /rst_snippets/note_snippets/output_html_license_references.rst
+
     .. figure:: data/output_html1.png
 
     .. figure:: data/output_html2.png

docs/source/rst_snippets/note_snippets/output_html_license_references.rst

@@ -0,0 +1,4 @@
+.. note::
+
+    For the license references table it is recommended to pass the ``--license-references`` argument.
+    However, there is a fall back implemented in case the ``license_references`` data is missing.