Update explanation of days predicate

i18n/en.i18n.json

@@ -956,7 +956,7 @@
   "globalSearch-instructions-notes-1": "Multiple operators may be specified.",
   "globalSearch-instructions-notes-2": "Similar operators are *OR*ed together.  Cards that match any of the conditions will be returned.\n`__operator_list__:Available __operator_list__:Blocked` would return cards contained in any list named *Blocked* or *Available*.",
   "globalSearch-instructions-notes-3": "Differing operators are *AND*ed together.  Only cards that match all of the differing operators are returned.  `__operator_list__:Available __operator_label__:red` returns only cards in the list *Available* with a *red* label.",
-  "globalSearch-instructions-notes-3-2": "Days can be specified as an integer or using `__predicate_week__`, `__predicate_month__`, `__predicate_quarter__` or `__predicate_year__`",
+  "globalSearch-instructions-notes-3-2": "Days can be specified as a positive or negative integer or using `__predicate_week__`, `__predicate_month__`, `__predicate_quarter__` or `__predicate_year__` for the current period.",
   "globalSearch-instructions-notes-4": "Text searches are case insensitive.",
   "globalSearch-instructions-notes-5": "By default archived cards are not searched.",
   "link-to-search": "Link to this search",