diff --git a/misc/www/build_server/readme.txt b/misc/www/build_server/readme.txt
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+In this folder we have the binaries which are compiled by http://jenkins.rusefi.com every time the server version of the source code is updated.
+
+Please note that continues integration process takes about 30 minutes
+
+https://github.com/rusefi/rusefi
+
+FAQ
+Q: what is hardware_QC_special_build?
+A: it's a special build used only internally for hardware assembly quality assurance using custom test fixture. 
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