Add Goutham's blog post to README (#141)

* Add Goutham's blog post.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

* Review feedback, add David's other talk.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>

README.md

@@ -214,8 +214,10 @@ Your feedback is always welcome.
 ## Further Reading
 
 - The original [design doc](https://docs.google.com/document/d/11tjK_lvp1-SVsFZjgOTr1vV3-q6vBAsZYIQ5ZeYBkyM/view) for Loki is a good source for discussion of the motivation and design decisions.
-- David Kaltschmidt KubeCon 2018 talk "[On the OSS Path to Full Observability with Grafana][kccna18-event]" ([slides][kccna18-slides], [blog post][kccna18-post])
+- David Kaltschmidt's OSMC 2018 talk "[Logging is coming to Grafana](https://www.youtube.com/watch?v=vDXAVZY7rB0)"
+- David Kaltschmidt's KubeCon 2018 talk "[On the OSS Path to Full Observability with Grafana][kccna18-event]" ([slides][kccna18-slides], [video][kccna18-video])
+- Goutham Veeramachaneni's blog post "[Loki: Prometheus-inspired, open source logging for cloud natives](https://grafana.com/blog/2018/12/12/loki-prometheus-inspired-open-source-logging-for-cloud-natives/)".
 
 [kccna18-event]: https://kccna18.sched.com/event/GrXC/on-the-oss-path-to-full-observability-with-grafana-david-kaltschmidt-grafana-labs
 [kccna18-slides]: https://speakerdeck.com/davkal/on-the-path-to-full-observability-with-oss-and-launch-of-loki
-[kccna18-post]: https://grafana.com/blog/2018/12/12/loki-prometheus-inspired-open-source-logging-for-cloud-natives/
+[kccna18-video]: https://www.youtube.com/watch?v=tpJRG_ijKe0
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