diff --git a/GST.cpp b/GST.cpp
index 1bb6f90..980242a 100644
--- a/GST.cpp
+++ b/GST.cpp
@@ -1,6 +1,6 @@
 //
 //    FILE: GST.cpp
-// VERSION: 0.1.3
+// VERSION: 0.1.4
 // PURPOSE: Arduino library for Gold Standard Test metrics
 //     URL: https://github.com/RobTillaart/GST
 //          https://en.wikipedia.org/wiki/Sensitivity_and_specificity
diff --git a/GST.h b/GST.h
index 0cf5cc4..9d26349 100644
--- a/GST.h
+++ b/GST.h
@@ -1,7 +1,7 @@
 #pragma once
 //
 //    FILE: GST.h
-// VERSION: 0.1.3
+// VERSION: 0.1.4
 // PURPOSE: Arduino library for Gold Standard Test metrics
 //     URL: https://github.com/RobTillaart/GST
 //          https://en.wikipedia.org/wiki/Sensitivity_and_specificity
@@ -10,7 +10,7 @@
 //  formula's based upon Wikipedia.
 
 
-#define GST_LIB_VERSION           (F("0.1.3"))
+#define GST_LIB_VERSION           (F("0.1.4"))
 
 
 #include "Arduino.h"
diff --git a/README.md b/README.md
index 51130f5..144a685 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,11 @@
 [![Arduino CI](https://github.com/RobTillaart/GST/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/GST/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/GST/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/GST/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/GST/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/GST.svg)](https://github.com/RobTillaart/GST/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/GST/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/GST.svg?maxAge=3600)](https://github.com/RobTillaart/GST/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/GST.svg)](https://registry.platformio.org/libraries/robtillaart/GST)
 
 
 # GST
@@ -30,6 +33,7 @@ These sites describe the functions in more detail.
 
 - https://github.com/RobTillaart/Correlation
 - https://github.com/RobTillaart/GST - Golden standard test metrics
+- https://github.com/RobTillaart/Histogram
 - https://github.com/RobTillaart/RunningAngle
 - https://github.com/RobTillaart/RunningAverage
 - https://github.com/RobTillaart/RunningMedian
@@ -158,7 +162,6 @@ Read the Wikipedia pages for their uses.
 
 - improve documentation
 
-
 #### Should
 
 - add functions
@@ -166,10 +169,20 @@ Read the Wikipedia pages for their uses.
 - test
   - complete the CI test coverage.
 
-
 #### Could
 
 - examples
   - add real life examples.
   - combination with a sensor? batch testing?
 
+#### Wont
+
+
+## Support
+
+If you appreciate my libraries, you can support the development and maintenance.
+Improve the quality of the libraries by providing issues and Pull Requests, or
+donate through PayPal or GitHub sponsors.
+
+Thank you,
+
diff --git a/changelog.md b/changelog.md
index e2b143f..be39871 100644
--- a/changelog.md
+++ b/changelog.md
@@ -6,13 +6,16 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.1.4] - 2023-11-02
+- update readme.md
+
+
 ## [0.1.3] - 2022-11-08
 - update GitHub actions
 - update license 2023
 - update readme.md
 - update unit tests
 
-
 ## [0.1.2] - 2022-11-08
 - add RP2040 to build CI
 - update changelog.md
diff --git a/library.json b/library.json
index 56a52fb..42463a9 100644
--- a/library.json
+++ b/library.json
@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/GST.git"
   },
-  "version": "0.1.3",
+  "version": "0.1.4",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "GST.h"
 }
diff --git a/library.properties b/library.properties
index 16401f8..dfbc1c6 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=GST
-version=0.1.3
+version=0.1.4
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for Golden Standard Test, confusion matrix.