README: General overview of content

+ TODO: Full instructions for downloading the data files locally
+ TODO: Compiling to a runnable JAR using Eclipse
+ TODO: Link back to CommonCrawl.org

README.md

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+![Common Crawl Logo](http://commoncrawl.org/wp-content/uploads/2012/04/ccLogo.png)
+
+# Common Crawl WARC Examples
+
+This repository contains both wrappers for processing WARC files in Hadoop MapReduce jobs and also Hadoop examples to get you started.
+
+There are three examples for Hadoop processing:
+
++ [WARC files] HTML tag frequency counter using raw HTTP responses
++ [WAT files] Server response analysis using response metadata
++ [WET files] Classic word count example using extracted text
+
+All three assume initially that the files are stored locally but can be trivially modified to pull them down from Common Crawl's Amazon S3 bucket.
+To acquire the files, you can use [S3Cmd](http://s3tools.org/s3cmd) or similar.
+
+    s3cmd get s3://aws-publicdatasets/common-crawl/crawl-data/CC-MAIN-2013-48/segments/1386163035819/warc/CC-MAIN-20131204131715-00000-ip-10-33-133-15.ec2.internal.warc.gz
+
+# License
+
+MIT License, as per `LICENSE`