Attempt to fix #16838.

Question before proceeding - can we phrase this better? I've copied the author's suggestion for now. The confusion is that the "complete set" of keywords is provided slightly above but doesn't include "some" which is also referred to as a keyword here.

PiperOrigin-RevId: 500995346
Change-Id: I9562f1e1c65ef07baf9de1fed274ee24e13b245c

Author: Googler

site/en/query/language.md

@@ -109,7 +109,7 @@ tokens:
   bazel query ' "//foo:bar=wiz" '   # single-quotes for shell, double-quotes for Bazel.
   ```
 
-  Keywords, when quoted, are treated as ordinary words. For example, `some` is a
+  Keywords and operators, when quoted, are treated as ordinary words. For example, `some` is a
   keyword but "some" is a word. Both `foo` and "foo" are words.
 
   However, be careful when using single or double quotes in target names. When