Add new section on website for links to blog posts, podcasts and talk…

…s. (#2216)

* Add a new reference for learning resources with links to blog posts, podcasts, and videos
Signed-off-by: Peter Štibraný <pstibrany@gmail.com>
Co-authored-by: Ursula Kallio <ursula.kallio@grafana.com>

docs/sources/operators-guide/reference-learning-resources/_index.md

@@ -0,0 +1,22 @@
+---
+title: "Reference: Learning resources"
+menuTitle: "Reference: Learning resources"
+description: "Blog posts, podcasts, and videos about Grafana Mimir"
+weight: 130
+keywords:
+  - Grafana Mimir blog posts, podcasts, and videos
+---
+
+# Reference: Learning resources
+
+To learn more about Grafana Mimir, see the following resources:
+
+- June 2022 GrafanaCon 2022 talk: "[For billion-series scale or home IoT projects, get started in minutes with Grafana Mimir (using Helm)](https://grafana.com/go/grafanaconline/2022/grafana-mimir-migrate-your-metrics-in-minutes/)"
+- May 2022 podcast episode: [Grafana's Big Tent podcast: Grafana Mimir: Maintainers tell all](https://bigtent.fm/4), [transcript](https://grafana.com/blog/2022/05/03/grafana-mimir-maintainers-tell-all/)
+- May 2022 blog post: "[Scaling Grafana Mimir to 500 million active series on customer infrastructure with Grafana Enterprise Metrics](https://grafana.com/blog/2022/05/24/scaling-grafana-mimir-to-500-million-active-series-on-customer-infrastructure-with-grafana-enterprise-metrics/)"
+- April 2022 blog post: "[How Grafana Mimir’s split-and-merge compactor enables scaling metrics to 1 billion active series](https://grafana.com/blog/2022/04/19/how-grafana-mimirs-split-and-merge-compactor-enables-scaling-metrics-to-1-billion-active-series/)"
+- April 2022 video tutorial: "[How to migrate to Grafana Mimir in less than 4 minutes](https://grafana.com/blog/2022/04/25/video-how-to-migrate-to-grafana-mimir-in-less-than-4-minutes/)"
+- April 2022 blog post: "[How we scaled our new Prometheus TSDB Grafana Mimir to 1 billion active series](https://grafana.com/blog/2022/04/08/how-we-scaled-our-new-prometheus-tsdb-grafana-mimir-to-1-billion-active-series/)"
+- April 2022 video tutorial: "[Get started with Grafana Mimir in minutes](https://grafana.com/blog/2022/04/15/video-get-started-with-grafana-mimir-in-minutes/)"
+- March 2022 blog post "[Grafana Mimir Q&A with Grafana Labs CEO Raj Dutt](https://grafana.com/blog/2022/03/30/qa-with-our-ceo-about-grafana-mimir/)"
+- March 2022 blog post "[Announcing Grafana Mimir, the most scalable open source TSDB in the world](https://grafana.com/blog/2022/03/30/announcing-grafana-mimir/)"