Add OpenStatus (#243)

Author: thibaultleouay

README.md

@@ -188,6 +188,7 @@ Notetaking|[Trilium.cc](https://trilium.cc/)|Personal knowledge base|<a href=htt
 Observability and monitoring|[Chaos Genius](https://www.chaosgenius.io/)|ML powered analytics engine for outlier/anomaly detection and root cause analysis|<a href=https://github.com/chaos-genius/chaos_genius><img src="https://img.shields.io/github/stars/chaos-genius/chaos_genius?style=social" width=150/></a>|[AWS Lookout](https://aws.amazon.com/lookout-for-metrics/), [Anodot](https://www.anodot.com/), [Sisu Data](https://sisudata.com/), [Outlier](https://outlier.ai/)
 Observability and monitoring|[Grafana](https://grafana.com/)|Observability and data visualization platform|<a href=https://github.com/grafana/grafana><img src="https://img.shields.io/github/stars/grafana/grafana?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)
 Observability and monitoring|[Netdata](https://www.netdata.cloud)|Application monitoring and observability platform|<a href=https://github.com/netdata/netdata><img src="https://img.shields.io/github/stars/netdata/netdata?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)
+Observability and monitoring|[OpenStatus](https://openstatus.dev/)|Synthetic monitoring platform|<a href=https://github.com/openstatusHQ/openstatus><img src="https://img.shields.io/github/stars/openstatusHQ/openstatus?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)
 Observability and monitoring|[Sentry](https://sentry.io/)|Application monitoring with a focus on error reporting|<a href=https://github.com/getsentry/sentry><img src="https://img.shields.io/github/stars/getsentry/sentry?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)
 Observability and monitoring|[Signoz](https://signoz.io/)|Application monitoring and observability platform|<a href=https://github.com/signoz/signoz><img src="https://img.shields.io/github/stars/signoz/signoz?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)
 Observability and monitoring|[Uptrace](https://uptrace.dev/)|Application monitoring and observability platform|<a href=https://github.com/uptrace/uptrace><img src="https://img.shields.io/github/stars/uptrace/uptrace?style=social" width=150/></a>|[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)