Added in release notes for 1.5.5 (#5639)

* added in release notes

* Update release-1.5.5.md

Removed incorrect PR.

* Update docs/release-notes/1.5.5/release-1.5.5.md

Co-authored-by: Eric StJohn <[email protected]>

* Update docs/release-notes/1.5.5/release-1.5.5.md

Co-authored-by: Eric StJohn <[email protected]>

* Update release-1.5.5.md

Co-authored-by: Eric StJohn <[email protected]>

Author: michaelgsharp

docs/release-notes/1.5.5/release-1.5.5.md

@@ -0,0 +1,39 @@
+# [ML.NET](http://dot.net/ml) 1.5.5
+
+## **New Features**
+- **New API allowing confidence parameter to be a double**.([#5623](https://github.com/dotnet/machinelearning/pull/5623))
+. A new API has been added to accept double type for the confidence level. This helps when you need to have higher precision than an int will allow for. (**Thank you @esso23**)
+- **Support to export ValueMapping estimator to ONNX was added** ([#5577](https://github.com/dotnet/machinelearning/pull/5577))
+- **New API to treat TensorFlow output as batched/not-batched** ([#5634](https://github.com/dotnet/machinelearning/pull/5634)) A new API has been added so you can specify if the output from TensorFlow is batched or not.
+
+
+## **Enhancements**
+- Make ColumnInference serializable ([#5611](https://github.com/dotnet/machinelearning/pull/5611))
+
+
+## **Bug Fixes**
+- **AutoML.NET specific fixes**.
+  - Fixed an AutoML aggregate timeout exception ([#5631](https://github.com/dotnet/machinelearning/pull/5631))
+  - Offer suggestions for possibly mistyped label column names in AutoML ([#5624](https://github.com/dotnet/machinelearning/pull/5624)) (**Thank you @Crabzmatic**)
+- Update some ToString conversions ([#5627](https://github.com/dotnet/machinelearning/pull/5627)) (**Thanks @4201104140**)
+- Fixed an issue in SRCnnEntireAnomalyDetector ([#5579](https://github.com/dotnet/machinelearning/pull/5579))
+- Fixed nuget.config multi-feed issue ([#5614](https://github.com/dotnet/machinelearning/pull/5614))
+- Remove references to Microsoft.ML.Scoring ([#5602](https://github.com/dotnet/machinelearning/pull/5602))
+- Fixed Averaged Perceptron default value ([#5586](https://github.com/dotnet/machinelearning/pull/5586))
+
+
+## **Build / Test updates**
+- Fixing official build by adding homebrew bug workaround ([#5596](https://github.com/dotnet/machinelearning/pull/5596))
+- Nuget.config url fix for roslyn compilers ([#5584](https://github.com/dotnet/machinelearning/pull/5584))
+- Add SymSgdNative reference to AutoML.Tests.csproj ([#5559](https://github.com/dotnet/machinelearning/pull/5559))
+
+
+## **Documentation Updates**
+- Updated documentation for the correct version of CUDA for TensorFlow. ([#5635](https://github.com/dotnet/machinelearning/pull/5635))
+- Updates documentation for an issue with brew and installing libomp. ([#5635](https://github.com/dotnet/machinelearning/pull/5635))
+- Updated an ONNX url to the correct url.  ([#5635](https://github.com/dotnet/machinelearning/pull/5635))
+- Added a note in the documentation that the PredictionEngine is not thread safe. ([#5583](https://github.com/dotnet/machinelearning/pull/5583))
+
+
+## **Breaking Changes**
+- None