adding a ref to the 'tools' folder in the README

README.md

@@ -45,6 +45,8 @@ The choice to work with Mediawiki and web-to-print techniques, continues practic
 
 ## Other tools used for Volumetric Regimes
 
+See: `./tools/`
+
 Most of these tools are used for PDF manipulation. 
 
 With a big thanks to OSP's PDFUTILS! <http://osp.kitchen/tools/pdfutils/>