add some packages

node_modules/readdirp/examples/Readme.md

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+# readdirp examples
+
+## How to run the examples
+
+Assuming you installed readdirp (`npm install readdirp`), you can do the following:
+
+1. `npm explore readdirp`
+2. `cd examples`
+3. `npm install`
+
+At that point you can run the examples with node, i.e., `node grep`.
+
+## stream api
+
+[stream-api.js](https://github.com/thlorenz/readdirp/blob/master/examples/stream-api.js)
+
+Demonstrates error and data handling by listening to events emitted from the readdirp stream.
+
+## stream api pipe
+
+[stream-api-pipe.js](https://github.com/thlorenz/readdirp/blob/master/examples/stream-api-pipe.js)
+
+Demonstrates error handling by listening to events emitted from the readdirp stream and how to pipe the data stream into
+another destination stream.
+
+## grep
+
+[grep.js](https://github.com/thlorenz/readdirp/blob/master/examples/grep.js)
+
+Very naive implementation of grep, for demonstration purposes only.
+
+## using callback api
+
+[callback-api.js](https://github.com/thlorenz/readdirp/blob/master/examples/callback-api.js)
+
+Shows how to pass callbacks in order to handle errors and/or data.
+