Minor Description
The C# "avrogen" tool copies the values of "doc" properties from the schema to XML documentation comments in the generated C# files. If the "doc" property contains XML reserved characters but is not valid XML, then they will cause warnings when the generated C# file is later compiled. This can happen if the "doc" property is e.g. Markdown intended to be processed by a different tool.
The "avrogen" tool should either encode the XML reserved characters or provide a way to omit the XML documentation comments entirely.