Mitch Garnaat

Adding a README to describe how to install nodejs dependencies for the S3 sample. Fixes #18.

1 +This example requires some additionaly nodejs packages to be incuded in the zip
2 +file that is uploaded to AWS.
3 +
4 +To install these, first make sure you have nodejs installed locally. Then:
5 +
6 +1. cd examplefolder
7 +2. npm install async gm
8 +
9 +This will create a node_modules directory under examplefolder and the required
10 +nodejs packages will be included within that directory.
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