Add link to MAINTAINERS.md's PDF generation instructions

README.md

@@ -4,7 +4,7 @@ SAM/BAM and related specifications
 Links **in bold** point to the corresponding PDFs on this repository's [GitHub Pages website][hts-specs].
 
 Please request improvements or report errors using this repository, but see also [the list of maintainers](MAINTAINERS.md) if you need to contact them directly.
-
+See the [build instructions](MAINTAINERS.md#generating-pdf-specification-documents) for an explanation of how to generate the PDF documents from their source text.
 
 Alignment data files
 --------------------