README.md in financial_maths-0.0.7 vs README.md in financial_maths-0.0.8

@@ -129,5 +129,9 @@
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create new Pull Request
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+[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/rderoldan1/financial_maths/trend.png)](https://bitdeli.com/free "Bitdeli Badge")
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