add #4462 to changelog

Author: schmichael

CHANGELOG.md

@@ -3,14 +3,15 @@
 IMPROVEMENTS:
  * core: Added advertise address to client node meta data [[GH-4390](https://github.com/hashicorp/nomad/issues/4390)]
  * client: Extend timeout to 60 seconds for Windows CPU fingerprinting [[GH-4441](https://github.com/hashicorp/nomad/pull/4441)]
+ * driver/docker: Add support for specifying `cpu_cfs_period` in the Docker driver [[GH-4462](https://github.com/hashicorp/nomad/issues/4462)]
  * telemetry: All client metrics include a new `node_class` tag [[GH-3882](https://github.com/hashicorp/nomad/issues/3882)]
  * telemetry: Added new tags with value of child job id and parent job id for
    parameterized and periodic jobs [[GH-4392](https://github.com/hashicorp/nomad/issues/4392)]
  * vendor: Removed library obsoleted by go 1.8 [[GH-4469](https://github.com/hashicorp/nomad/issues/4469)]
 
 
 BUG FIXES:
- * core: Reset queued allocation summary to zero when job stopped [GH-4414]
+ * core: Reset queued allocation summary to zero when job stopped [[GH-4414](https://github.com/hashicorp/nomad/issues/4414)]
 
 ## 0.8.4 (June 11, 2018)