Update dictionary and tweak wording

data/json/items/chemicals_and_resources.json

@@ -1148,7 +1148,7 @@
     "//3": "The same company manufactures larger tablets for larger volumes, but the amount of active ingredient per litre of water is roughly equivalent and the procedure is similar",
     "//4": "The infrastructure does not currently exist for modelling whether water is cloudy.",
     "//5": "Based on this: usage is modeled in-game as: 1. Spend 5m/1L with significant batch savings to decant, 2. Add tablets 3. Assume mixing can be arranged, 4. wait 40 minutes for clean water.",
-    "description": "Intended for the clarification and disinfection of unsafe drinking water while camping or travelling, this sodium dichloroisocyanurate-based purification tablet removes dangerous contaminants using powerful chemicals.  The label says to use one tablet per litre (4 units of water).",
+    "description": "Intended for the clarification and disinfection of unsafe drinking water while camping or travelling, this sodium dichloroisocyanurate-based purification tablet removes dangerous contaminants using powerful chemicals.  The label says to use one tablet per liter (4 units of water).",
     "price": "9 cent",
     "price_postapoc": "20 cent",
     "volume": "2 ml",

data/json/items/comestibles/drink.json

@@ -1870,7 +1870,7 @@
       "moves": 100,
       "type": "delayed_transform",
       "transform_age": 2400,
-      "not_ready_msg": "The chlorine released by the tablets is still working.  This isn't ready to drink yet."
+      "not_ready_msg": "The chlorine released by the tablets is still working.  You still need to wait a bit before you can drink it."
     }
   }
 ]

tools/spell_checker/dictionary.txt

@@ -803,6 +803,7 @@ dewlap
 dextrous
 dharmachakra
 diaspora
+dichloroisocyanurate
 didn
 dieselpunk
 diffract