Update Q13: add info about different terminal emulators

docs/rusfaq.txt

@@ -182,6 +182,8 @@ $Date$
      <20> <20> ~/.screenrc:
      bindkey -d -k kb stuff \010
      <20><><EFBFBD><EFBFBD>᪠<EFBFBD><E1AAA0> golded+ <20><>१ screen: screen gedlnx
+*A:* Alexander Brovikov, Stas Degteff: <20> xterm Backspace ࠡ<>⠥<EFBFBD> <20><>ଠ<EFBFBD>쭮, <20>
+     Konsole <20> rxvt <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥬<> <20><> ᨬ<>⮬<EFBFBD><E2AEAC><EFBFBD>.
 
 *Q14:* <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Alt-S <20><> FreeBSD? ;-)
 *A:* andrey i. mavlyanov: <20><><EFBFBD>ࠢ<EFBFBD><E0A0A2><EFBFBD> <20><>᪫<EFBFBD><E1AAAB><EFBFBD><EFBFBD> <20><> <20>ਢ<EFBFBD><E0A8A2>񭭮<EFBFBD><F1ADADAE> DIFF'<27>