Created FAQ (markdown)

FAQ.md

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+# Degug Console
+## 'hid_listen' can't find device
+When debug console of your device is not ready you will see like this:
+
+    Waiting for device:.........
+
+once the device is pluged in then 'hid_listen' finds it you will get this message:
+
+    Waiting for new device:.........................
+    Listening:
+
+Check these if you can't get this 'Listening:' message:
+- build with 'CONSOLE_ENABLE=yes' in Makefile
+
+
+# NKRO
+
+# PS/2 mouse support