Advise against using new tuple(...).

Author: benjamn

README.md

@@ -21,7 +21,7 @@ npm test # if skeptical
 
 ## Usage
 
-The npm package exports a single function called `tuple`, both as a `default` export and as an equivalent named export, so all of the following import styles will work:
+This package exports a single function called `tuple`, both as a `default` export and as an equivalent named export, so all of the following import styles will work:
 
 ```js
 import tuple from "immutable-tuple";
@@ -45,6 +45,8 @@ assert.strictEqual(t1 === t2, true);
 assert.strictEqual(t1, t2);
 ```
 
+Although the `tuple` function can be invoked using `new tuple(...)` syntax, using `new` is not recommended, since the new object will simply be thrown away.
+
 ### Own `tuple` properties
 
 The `tuple` object has a fixed numeric `.length` property, and its elements may be accessed using array index notation: