add release notes

change_logs/release_v0.3.13.md

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+<img src="https://raw.githubusercontent.com/derailed/popeye/master/assets/popeye.png" align="right" width="200" height="auto"/>
+
+# Release v0.3.13
+
+## Notes
+
+Thank you so much for your support and suggestions to make Popeye better!!
+
+If you dig this tool, please make some noise on social! [@kitesurfer](https://twitter.com/kitesurfer)
+
+---
+
+## Change Logs
+
+### Add over-allocs flag
+
+Popeye is designed to report sanitization on a live cluster. As such when a cluster is mainly idle, the over allocation report may yield false positives. To this end, we've added a `--over-allocs` option to the CLI to opt-in over allocations reports. By default this option will be off, hence no over cpu/memory allocations will be reported. This now gives you an option to report allocation based on cluster load.
+
+---
+
+## Resolved Bugs
+
+* [Issue #39](https://github.com/derailed/popeye/issues/39)
+
+---
+
+<img src="https://raw.githubusercontent.com/derailed/popeye/master/assets/imhotep_logo.png" width="32" height="auto"/>&nbsp; © 2019 Imhotep Software LLC. All materials licensed under [Apache v2.0](http://www.apache.org/licenses/LICENSE-2.0)