document new query_unsafe option

dfhack-config/quickfort/quickfort.txt

@@ -22,6 +22,14 @@ buildings_use_blocks=true
 # be designated in marker mode.
 force_marker_mode=false
 
+# Skip query blueprint sanity checks that detect common blueprint errors and
+# halt or skip keycode playback. Checks include ensuring a configurable building
+# exists at the designated cursor position and verifying the active UI screen is
+# the same before and after sending keys for the cursor position. Temporarily
+# enable this if you are running a query blueprint that sends a key sequence
+# that is *not* related to stockpile or building configuration.
+query_unsafe=false
+
 # Set to the maximum number of resources you want assigned to stockpiles of the
 # relevant types. Set to -1 for DF defaults (number of stockpile tiles for
 # stockpiles that take barrels and bins, 1 wheelbarrow for stone stockpiles).