Update example

kgryte · kgryte · commit bd56d4614291 · 2019-11-12T18:18:05.000-08:00
diff --git a/lib/node_modules/@stdlib/_tools/docs/www/readme-fragment-file-tree/README.md b/lib/node_modules/@stdlib/_tools/docs/www/readme-fragment-file-tree/README.md
@@ -136,6 +136,7 @@ function done( error ) {
 ```javascript
 var mkdir = require( 'fs' ).mkdirSync;
 var resolve = require( 'path' ).resolve;
+var exists = require( '@stdlib/fs/exists' ).sync;
 var build = require( '@stdlib/_tools/docs/www/readme-fragment-file-tree' );
 
 var dpath = resolve( __dirname, '..', 'build' );
@@ -155,7 +156,9 @@ var opts = {
     ]
 };
 
-mkdir( dpath );
+if ( !exists( dpath ) ) {
+    mkdir( dpath );
+}
 build( dpath, opts, done );
 
 function done( error ) {
