Readme

README.md

@@ -126,10 +126,11 @@ between `/01` and `/10`.
 
 Simple subfield filter consists of the subfield code (single
 alpha-numerical character, ex `0`) a comparison operator (equal `==`,
-not equal `!=` not equal, starts with prefix `=^`, ends with suffix
-`=$`, regex `=~`/`!~`, `in` and `not in`) and a value enclosed in single
-quotes. These simple subfield expressions can be grouped in parentheses
-and combined with boolean connectives (ex. `(0 == 'abc' || 0 == 'def')`).
+not equal `!=` not equal, starts with prefix `=^`, starts not with
+prefix `!^`, ends with suffix `=$`, regex `=~`/`!~`, `in` and `not in`)
+and a value enclosed in single quotes. These simple subfield expressions
+can be grouped in parentheses and combined with boolean connectives (ex.
+`(0 == 'abc' || 0 == 'def')`).
 
 A special existence operator can be used to check if a given field
 (`012A/00?`) or a subfield (`[email protected]?` or `002@$0?`) exists.  To test for