add 1.15.1 release notes (#126)

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

config.toml

@@ -113,7 +113,7 @@ algolia_docsearch = true
 # current release branch - could be rc
 release_branch = "master"
 # the main version. Never is rc.
-release_version = "v1.15.0"
+release_version = "v1.15.1"
 
 slackurl = "/slack"
 

content/en/docs/releases/v1.15.1.md

@@ -0,0 +1,34 @@
+---
+title: "v1.15.1"
+linkTitle: v1.15.1
+weight: 85
+---
+
+Please check the [1.15 release notes]({{< ref "v1.15.0.md" >}}) first before reading following notes.
+
+This release includes few fixes and improvements on top of v1.15.0.
+
+## Fixes
+
+- Retry pod choose in pool manager if we get terminated pods [PR #2274](https://github.com/fission/fission/pull/2274)
+- Allow user to use existing bucket with same name via fission storage service [PR #2275](https://github.com/fission/fission/pull/2275) [Issue #2199](https://github.com/fission/fission/issues/2199)
+- Capture error from schema check in preupgrade verification [PR #2285](https://github.com/fission/fission/pull/2285)
+- Update dependency opencontainers/runc v1.0.3  [PR #2281](https://github.com/fission/fission/pull/2281)
+- MQT Kafka: Use Sarama Group Consumer instead of bsm/sarama-cluster library [PR #2286](https://github.com/fission/fission/pull/2286) [Issue #2209](https://github.com/fission/fission/issues/2209)
+
+### Internal Fixes
+
+- CRD Docs generation support [PR #2273](https://github.com/fission/fission/pull/2273)
+
+## Deprecation
+
+- With addition of OpenTelemetry, we would be soon removing OpenTracing instrumentation.
+- HTTPTrigger/Route creation from Fission CLI is deprecated. Use `fission route create` instead. [PR #2171](https://github.com/fission/fission/pull/2171)
+- We have deprecated `Spec.Method` in HTTPTrigger since 1.13.0, please use `Spec.Methods` instead.
+
+## References
+
+- [Environments](https://environments.fission.io/)
+- [Custom Resource Definition Specification](https://doc.crds.dev/github.com/fission/fission)
+- [Changelog](https://github.com/fission/fission/blob/master/CHANGELOG.md)
+- [Releases](https://github.com/fission/fission/releases)