Update CHANGELOG.md

CHANGELOG.md

@@ -11,10 +11,11 @@ All notable changes to this project will be documented in this file.
 - **incompatible changes** in the GKE nodepool module
   - rename `node_config_workload_metadata_config` variable to `workload_metadata_config`
   - new default for `workload_metadata_config` is `GKE_METADATA_SERVER`
-- **incompatible change** remove support for MIG from `compute-vm` module
+- **incompatible change** in the `compute-vm` module
+  - removed support for MIG and the `group_manager` variable
 - add `compute-mig` and `net-ilb` modules
-- **incompatible change** add support for specifying subnet name in `net-vpc`
-  to update to the new module, add an extra `name = false` attribute to each subnet
+- **incompatible change** in `net-vpc`
+  - a new `name` attribute has been added to the `subnets` variable, allowing to directly set subnet name, to update to the new module add an extra `name = false` attribute to each subnet
 
 ## [1.3.0] - 2020-04-08