diff --git a/README.md b/README.md
index dd16910..9410574 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,19 @@
 # KHolidays #
 
 Dates for holidays and other special events
 
 ## Introduction
 
 This library provides a C++ API that determines holiday and other
 special events for a geographical region.
+
+## Testing New Holiday Files
+
+put the new file in place under holidays/plan2
+edit the holidays/holidays.qrc file accordingly
+% cd <builddir>
+% make install && QT_LOGGING_RULES="*.debug=true" ./bin/testholidayregion  >& foo.txt
+look for lines containing "syntax error" in foo.txt.
+fix any such syntax errors and then you can commit
+
+