Added new books

Author: upgundecha

README.md

@@ -1361,9 +1361,11 @@ _Note to readers: This list refers to some of the articles, posts, videos, tools
 * [Chaos Engineering: Site reliability through controlled disruption](https://www.manning.com/books/chaos-engineering)
 * [Incident Metrics in SRE](https://www.oreilly.com/library/view/incident-metrics-in/9781098103163/) | [Read free online version hosted by Google](https://sre.google/resources/practices-and-processes/incident-metrics-in-sre/)
 * [Engineering Reliable Mobile Applications](https://www.oreilly.com/library/view/engineering-reliable-mobile/9781492057444/)
-* [_New!_ Monitoring the SRE Golden Signals](https://www.slideshare.net/OpsStack/how-to-monitoring-the-sre-golden-signals-ebook)
-* [_New!_ Site Reliability Engineering: Philosophies, habits, and tools for SRE success](https://newrelic.com/resources/ebooks/site-reliability-engineering) | [Portable version](https://newrelic.com/sites/default/files/2021-08/site-reliability-engineering-handbook.pdf)
-* [_New!_ 97 Things Every Cloud Engineer Should Know](https://www.redhat.com/rhdc/managed-files/cl-97-things-cloud-engineers-know-e-book-oreilly-f28602-202105-en.pdf)
+* [Monitoring the SRE Golden Signals](https://www.slideshare.net/OpsStack/how-to-monitoring-the-sre-golden-signals-ebook)
+* [Site Reliability Engineering: Philosophies, habits, and tools for SRE success](https://newrelic.com/resources/ebooks/site-reliability-engineering) | [Portable version](https://newrelic.com/sites/default/files/2021-08/site-reliability-engineering-handbook.pdf)
+* [97 Things Every Cloud Engineer Should Know](https://www.redhat.com/rhdc/managed-files/cl-97-things-cloud-engineers-know-e-book-oreilly-f28602-202105-en.pdf)
+* [Real-World SRE](https://www.packtpub.com/product/real-world-sre/9781788628884)
+* [Hands-on Site Reliability Engineering](https://bpbonline.com/products/hands-on-site-reliability-engineering?_pos=1&_sid=839999550&_ss=r)
 
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