Corrected sector types in wld-files according last know good

lib/world/wld/106.wld

@@ -186,7 +186,7 @@ beyond the gate and walls.  You remember rumors of the city being overthrown by
 a new political faction.  But who listens to politics.  "Poli" meaning many,
 "tics" meaning blood sucking insects.    
 ~
-106 0 0 0 0 0
+106 0 0 0 0 3
 D0
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 ~
@@ -265,7 +265,7 @@ or possible overthrowing.  Many cunning politicians have plans for this city.
 A gravel path continues east out the gate.  The north is blocked by a tall
 cliff face.    
 ~
-106 0 0 0 0 0
+106 0 0 0 0 3
 D3
 ~
 ~
@@ -341,7 +341,7 @@ ill and rumors abound.  Everything from him being poisoned to an illness sent
 from the Gods because of the Mayor's betrayal to the upkeep of the citizens.  
 A thick forest can be seen to the west.    
 ~
-106 0 0 0 0 0
+106 0 0 0 0 3
 D1
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 ~