Added readme

mute-idiom/README.md

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+---
+layout: pattern
+title: Mute Idiom
+folder: mute-idiom
+permalink: /patterns/mute-idiom/
+categories: Other
+tags: 
+ - Java
+ - Difficulty-Beginner
+ - Idiom
+---
+
+## Intent
+Provide a template to supress any exceptions that either are declared but cannot occur or should only be logged;
+while executing some business logic. The template removes the need to write repeated `try-catch` blocks.
+
+
+![alt text](./etc/mute-idiom.png "Mute Idiom")
+
+## Applicability
+Use this idiom when
+
+* an API declares some exception but can never throw that exception. Eg. ByteArrayOutputStream bulk write method.
+* you need to suppress some exception just by logging it, such as closing a resource.
+
+## Credits
+
+* [JOOQ: Mute Design Pattern](http://blog.jooq.org/2016/02/18/the-mute-design-pattern/)