docs: Add v1.13 release notes (#4040)

Author: alsoba13

docs/sources/release-notes/v1-13.md

@@ -0,0 +1,24 @@
+---
+title: Version 1.13 release notes
+menuTitle: V1.13
+description: Release notes for Grafana Pyroscope 1.13
+weight: 250
+---
+
+# Version 1.13 release notes
+
+The Pyroscope team is excited to present Grafana Pyroscope 1.13.
+
+This release contains enhancements, improves stability & performance.
+
+Notable changes are listed below. For more details, check out the [1.13.0 changelog](https://github.com/grafana/pyroscope/compare/v1.12.0...v1.13.0).
+
+## Enhancements
+* gzip: escape heap allocation ([#3922](https://github.com/grafana/pyroscope/pull/3922))
+* perf: add log buffer ([#3947](https://github.com/grafana/pyroscope/pull/3947))
+* perf: add async log writer ([#3953](https://github.com/grafana/pyroscope/pull/3953))
+
+## Fixes
+* Remove duplicate service_name and app_name labels during ingestion ([#3951](https://github.com/grafana/pyroscope/pull/3951))
+* IPv6 support fixes ([#3919](https://github.com/grafana/pyroscope/pull/3919))
+* Drop negative samples ([#3955](https://github.com/grafana/pyroscope/pull/3955))