(README) add GH actions badges

README.md

@@ -1,5 +1,7 @@
 # hmi_picovoice
 
+[![CI](https://github.com/tue-robotics/hmi_picovoice/actions/workflows/main.yml/badge.svg)](https://github.com/tue-robotics/hmi_picovoice/actions/workflows/main.yml) [![Lint](https://github.com/tue-robotics/hmi_picovoice/actions/workflows/lint.yml/badge.svg)](https://github.com/tue-robotics/hmi_picovoice/actions/workflows/lint.yml)
+
 Provides a hmi interface connecting to picovoice rhino speech recognition.
 
 It depends on [`picovoice_driver`](https://github.com/reinzor/picovoice_ros) to interface with PicoVoice's backend.
@@ -34,4 +36,4 @@ semantics: "{\"size\": \"large\", \"beverage\": \"cappuccino\"}"
 ## Parameters
 For `hmi_picovoice_node.py`:
 - `context_url` what model to use. **TODO**: Not sure where eg. the string `coffee_maker_linux` comes from
-- `require_endpoint` ["If set to False, Rhino does not require an endpoint (chunk of silence) before finishing inference"](https://picovoice.ai/docs/api/rhino-python/)
+- `require_endpoint` ["If set to False, Rhino does not require an endpoint (chunk of silence) before finishing inference"](https://picovoice.ai/docs/api/rhino-python/)