Improve NewMapPresized/NewMapOfPresized godoc

map.go

@@ -124,7 +124,10 @@ func NewMap() *Map {
 }
 
 // NewMapPresized creates a new Map instance with capacity enough to hold
-// sizeHint entries. If sizeHint is zero or negative, the value is ignored.
+// sizeHint entries. The capacity is treated as the minimal capacity
+// meaning that the underlying hash table will never shrink to
+// a smaller capacity. If sizeHint is zero or negative, the value
+// is ignored.
 func NewMapPresized(sizeHint int) *Map {
 	m := &Map{}
 	m.resizeCond = *sync.NewCond(&m.resizeMu)

mapof.go

@@ -71,7 +71,9 @@ func NewMapOf[K comparable, V any]() *MapOf[K, V] {
 }
 
 // NewMapOfPresized creates a new MapOf instance with capacity enough
-// to hold sizeHint entries. If sizeHint is zero or negative, the value
+// to hold sizeHint entries. The capacity is treated as the minimal capacity
+// meaning that the underlying hash table will never shrink to
+// a smaller capacity. If sizeHint is zero or negative, the value
 // is ignored.
 func NewMapOfPresized[K comparable, V any](sizeHint int) *MapOf[K, V] {
 	return newMapOfPresized[K, V](makeHasher[K](), sizeHint)