Add changes for edge-20.3.2
Add changes for edge-20.3.2
+## edge-20.3.2
+
+This release introduces substantial proxy improvements as well as
+new observability and security functionality.
+
+* CLI
+ * Added the `linkerd alpha stat` command, which uses the smi-metrics
+ API; the latter enables access to metrics to be controlled with RBAC
+* Controller
+ * Added support for configuring service profile timeouts
+ `(x-linkerd-timeout)` via OpenAPI spec (thanks @lewiscowper!)
+* Web UI
+ * Improved the Grafana dashboards to use a globing operator for Prometheus in
+ order to avoid producing queries that are too large (thanks @mmiller1!)
+* Helm
+ * Improved the `linkerd2` chart README (thanks @lundbird!)
+* Proxy
+ * Fixed a bug that could cause log levels to be processed incorrectly
+
## edge-20.3.1
This release introduces new functionality mainly focused around
