diff --git a/FAQ/HOWTO_contribute_to_documentation.md b/FAQ/HOWTO_contribute_to_documentation.md
new file mode 100644
index 00000000..00ef8cde
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+++ b/FAQ/HOWTO_contribute_to_documentation.md
@@ -0,0 +1,21 @@
+
+
+
+# Technical implementation details
+
+Github Wiki is weird.
+
+One the one hand, we have https://github.com/rusefi/rusefi_documentation - that's a git repository with nice pull
+request process, but less nice web page rendering which start each folder by showing list of files, that's not what end users want to see. 
+
+
+On the other hand, we have https://github.com/rusefi/rusefi_documentation/wiki which is displayed much nicer - and 
+that https://github.com/rusefi/rusefi_documentation/wiki is actually implemented by ANOTHER git repository 
+https://github.com/rusefi/rusefi_documentation.wiki.git behind the scene. That https://github.com/rusefi/rusefi_documentation.wiki.git repository does not have a nice Pull Request process :(
+
+Solution? A combination. Here at rusefi_documentation both repositories are actually set to mirror each other.
+This way we have the nice Pull Request process on https://github.com/rusefi/rusefi_documentation and once changes are
+merged into https://github.com/rusefi/rusefi_documentation, complete https://github.com/rusefi/rusefi_documentation is merged
+into https://github.com/rusefi/rusefi_documentation.wiki.git which makes actual content nicely visible at https://github.com/rusefi/rusefi_documentation/wiki 
+
+
diff --git a/FAQ/HOWTO_help_rusEfi.md b/FAQ/HOWTO_help_rusEfi.md
index 81e3a084..34d38dea 100644
--- a/FAQ/HOWTO_help_rusEfi.md
+++ b/FAQ/HOWTO_help_rusEfi.md
@@ -3,6 +3,8 @@
 
 The weakest point of rusEfi is documentation. If you've played with rusEfi for any time chances are you have help improve the documentation.
 
+[Click here for more details](HOWTO_contribute_to_documentation.md)
+
 #### How to contribute to https://github.com/rusefi/rusefi_documentation
 
 Step 1: Sign up or sign in to https://github.com