Added current date for development release 5.2.1-dev3.
<url>http://www.keil.com/pack/</url>
<releases>
- <release version="5.2.1-dev3">
- Active development...
+ <release version="5.2.1-dev3" date="2018-01-23">
CMSIS-NN: 1.0.0
- Initial contribution of the bare metal Neural Network Library.
</release>
