docs: add #6855 to changelog

Also make Connect related fixes more consistent in the changelog. I
suspect users won't care if a Connect related fix is in the server's
admission controller or in the client's groupservice hook or somewhere
else, so I think grouping them by `consul/connect:` makes the most
sense.

CHANGELOG.md

@@ -7,6 +7,7 @@ IMPROVEMENTS:
 BUG FIXES:
 
  * cli: Fixed a bug where `nomad monitor -node-id` would cause a cli panic when no nodes where found. [[GH-6828](https://github.com/hashicorp/nomad/issues/6828)]
+ * consul/connect: Fixed a bug where Connect-enabled jobs failed to validate when service names used interpolation. [[GH-6855](https://github.com/hashicorp/nomad/issues/6855)]
 
 ## 0.10.2 (December 4, 2019)
 
@@ -54,10 +55,10 @@ BUG FIXES:
  * cli: Fixed a bug where a cli user may fail to query FS/Allocation API endpoints if they lack `node:read` capability [[GH-6423](https://github.com/hashicorp/nomad/issues/6423)]
  * client: client: Return empty values when host stats fail [[GH-6349](https://github.com/hashicorp/nomad/issues/6349)]
  * client: Fixed a bug where a client may not restart dead internal processes upon client's restart on Windows [[GH-6426](https://github.com/hashicorp/nomad/issues/6426)]
+ * consul/connect: Fixed registering multiple Connect-enabled services in the same task group [[GH-6646](https://github.com/hashicorp/nomad/issues/6646)]
  * drivers: Fixed a bug where client may panic if a restored task failed to shutdown cleanly [[GH-6763](https://github.com/hashicorp/nomad/issues/6763)]
  * driver/exec: Fixed a bug where exec tasks can spawn processes that live beyond task lifecycle [[GH-6722](https://github.com/hashicorp/nomad/issues/6722)]
  * driver/docker: Added mechanism for detecting running unexpectedly running docker containers [[GH-6325](https://github.com/hashicorp/nomad/issues/6325)]
- * nomad: Fixed registering multiple connect enabled services in the same task group [[GH-6646](https://github.com/hashicorp/nomad/issues/6646)]
  * scheduler: Changes to devices in resource stanza should cause rescheduling [[GH-6644](https://github.com/hashicorp/nomad/issues/6644)]
  * scheduler: Fixed a bug that allowed inplace updates after affinity or spread were changed [[GH-6703](https://github.com/hashicorp/nomad/issues/6703)]
  * vault: Allow overriding implicit Vault version constraint [[GH-6687](https://github.com/hashicorp/nomad/issues/6687)]