small Acrolinx fix

Author: American-Dipper

articles/virtual-machines/sizes-b-series-burstable.md

@@ -62,7 +62,7 @@ The B-series comes in the following VM sizes:
 
 Pricing Calculator: [Pricing Calculator](https://azure.microsoft.com/pricing/calculator/)
 
-More information on Disks Types : [Disk Types](./disks-types.md#ultra-disks)
+More information on Disks Types: [Disk Types](./disks-types.md#ultra-disks)
 
 ## Next steps