update whatsnew

dist/preview release/what's new.md

@@ -151,7 +151,7 @@
 
 - Added the feature `expandable` to the Solid Particle System ([jerome](https://github.com/jbousquie/))
 - Added the feature `removeParticles()` to the Solid Particle System ([jerome](https://github.com/jbousquie/))
-- Added the feature "storable particles" and `insertParticlesFromArray()` to the Solid Particle System ([jerome](https://github.com/jbousquie/))
+- Added the feature "storable particles" and `insertParticlesFromArray()` to the Solid Particle System ([jerome](https://github.com/jbousquie/))  
 
 ### Navigation Mesh