add env variable

Signed-off-by: Hannah Hunter <[email protected]>

daprdocs/content/en/reference/environment/_index.md

@@ -24,4 +24,5 @@ The following table lists the environment variables used by the Dapr runtime, CL
 | DAPR_HELM_REPO_PASSWORD | A password for a private Helm chart  |The password required to access the private Dapr helm chart. If it can be accessed publicly, this env variable does not need to be set| 
 | OTEL_EXPORTER_OTLP_ENDPOINT | OpenTelemetry Tracing | Sets the Open Telemetry (OTEL) server address, turns on tracing. (Example: `http://localhost:4318`) |
 | OTEL_EXPORTER_OTLP_INSECURE | OpenTelemetry Tracing | Sets the connection to the endpoint as unencrypted. (`true`, `false`) |
-| OTEL_EXPORTER_OTLP_PROTOCOL | OpenTelemetry Tracing | The OTLP protocol to use Transport protocol. (`grpc`, `http/protobuf`, `http/json`) |
+| OTEL_EXPORTER_OTLP_PROTOCOL | OpenTelemetry Tracing | The OTLP protocol to use Transport protocol. (`grpc`, `http/protobuf`, `http/json`) |
+| DAPR_COMPONENTS_SOCKET_FOLDER | Pluggable component | The location for the `.sock` file for the shared directory location socket |