📚 docs: Update examples to use new API.

Author: make-github-pseudonymous-again

README.md

@@ -4,7 +4,10 @@
 <img src="https://cdn.rawgit.com/aureooms/js-red-black-tree/main/media/sketch.svg" width="864">
 
 ```js
-let tree = RedBlackTree.from( increasing , range( 100000 ) ) ;
+import {from} from '@aureooms/js-red-black-tree';
+import {increasing} from '@aureooms/js-compare';
+import {range} from '@aureooms/js-itertools';
+let tree = from( increasing , range( 100000 ) ) ;
 ```
 
 Red-black tree library for JavaScript.

doc/manual/usage.md

@@ -9,7 +9,7 @@ import 'regenerator-runtime/runtime.js' ;
 
 Then
 ```js
-const { RedBlackTree } = require( '@aureooms/js-red-black-tree' ) ;
+const { empty , from } = require( '@aureooms/js-red-black-tree' ) ;
 // or
-import { RedBlackTree } from '@aureooms/js-red-black-tree' ;
+import { empty , from } from '@aureooms/js-red-black-tree' ;
 ```