Tweaked gitignore

gitignore removed all composer and npm files, so automated builds would fail

conf/site/node_modules/collect.js/docs/api/wrap.md

@@ -0,0 +1,13 @@
+# `wrap()`
+
+The wrap method will wrap the given value in a collection:
+
+```js
+const collection = collect().wrap([1, 2, 3]);
+
+collection.all();
+
+// [1, 2, 3]
+```
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/wrap.js)