Add entry to NEWS.md

Seelengrab · Seelengrab · commit d5460f01ff02 · 2021-06-23T21:28:49.000+02:00
diff --git a/NEWS.md b/NEWS.md
@@ -31,6 +31,7 @@ Build system changes
 New library functions
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+ * `indmax(f, col)` and `indmin(f, col)` have been added, returning the index maximizing/minimizing a given function (or `identity`, if none is given) over an indexable collection.
 
 New library features
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