Update announcements

announcements/README.md

@@ -5,6 +5,8 @@ The following links are official service update communications in reverse
 chronological order. You can find the complete list
 [here](https://azure.microsoft.com/updates/?product=batch).
 
+* [2020-06-16](https://azure.microsoft.com/updates/azure-private-link-for-azure-batch-is-now-generally-available-in-select-regions/)
+* [2020-01-15](https://azure.microsoft.com/updates/azure-batch-updates-december-2019/)
 * [2019-04-22](https://azure.microsoft.com/updates/azure-batch-updates-april-2019/)
 * [2018-06-12](https://azure.microsoft.com/updates/azure-batch-updates-may-2018/)
 * [2017-11-16](https://azure.microsoft.com/updates/batch-rendering-v-ray-name-changes/)