Update README.md

Author: dpscience

README.md

@@ -12,15 +12,23 @@ Support this project and keep always updated about recent software releases, bug
 ![badge-language](https://img.shields.io/badge/language-C++-blue)
 ![badge-license](https://img.shields.io/badge/license-GPL-blue)
 
-Copyright (c) 2016-2019 Danny Petschke (danny.petschke@uni-wuerzburg.de) All rights reserved.<br><br>
+Copyright (c) 2016-2021 Danny Petschke (danny.petschke@uni-wuerzburg.de) All rights reserved.<br><br>
 <b>DQuickLTFit</b> - A least-square fitting tool for the analysis of positron lifetime spectra consisting of discrete characteristic lifetimes using the Levenberg-Marquardt algorithm.<br>
 
 <br>![DQuickLTFit](/TestData/Software.png)
 
 # Quickstart Guide on Windows OS <img src="https://github.com/dpscience/DQuickLTFit/blob/master/Images/IconPNGRounded.png" width="25" height="25"> 
 
-* Download the latest software release (<b>DQuickLTFit_v4_1.rar</b>): https://github.com/dpscience/DQuickLTFit/releases
-* Unzip <b>DQuickLTFit_v4_1.rar</b>.
+## ``Option 1: via installer``
+* Download the latest installer (<b>installer_DDRS4PALS-v1.14.exe</b>): https://github.com/dpscience/DDRS4PALS/releases
+* Run the installer.
+* Run the <b>DQuickLTFit</b> executable.
+
+<b>The repository of the DQuickLTFit-installer can be found</b> [here.](https://github.com/dpscience/DQuickLTFit-installer)
+
+## ``Option 2: manual installation``
+* Download the latest software release (<b>DQuickLTFit_v4_2.rar</b>): https://github.com/dpscience/DQuickLTFit/releases
+* Unzip <b>DQuickLTFit_v4_2.rar</b>.
 * Download and install the Visual C++ Redistributable Package (x64) if required: https://www.microsoft.com/de-de/download/details.aspx?id=48145
 * Run the <b>DQuickLTFit</b> executable.
 
@@ -33,6 +41,8 @@ You can cite all versions by using the <b>DOI 10.5281/zenodo.1168285</b>. This D
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1168285.svg)](https://doi.org/10.5281/zenodo.1168285)
 
 ## ``v4.x``
+DQuickLTFit v4.2:<br>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3356830.svg)](https://doi.org/10.5281/zenodo.3356830)<br>
+
 DQuickLTFit v4.1:<br>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3356830.svg)](https://doi.org/10.5281/zenodo.3356830)<br>
 
 DQuickLTFit v4.0:<br>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1414142.svg)](https://doi.org/10.5281/zenodo.1414142)<br>
@@ -48,7 +58,8 @@ DQuickLTFit v3.0:<br>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1202345
 DQuickLTFit v2.06:<br>[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1168286.svg)](https://doi.org/10.5281/zenodo.1168286)<br>
 
 # License (GNU General Public License) <img src="https://github.com/dpscience/DQuickLTFit/blob/master/Images/IconPNGRounded.png" width="25" height="25">
-Copyright (c) 2016-2019 Danny Petschke (danny.petschke@uni-wuerzburg.de) All rights reserved.<br>
+
+Copyright (c) 2016-2021 Danny Petschke (danny.petschke@uni-wuerzburg.de) All rights reserved.<br>
 
 <p align="justify">This program is free software: you can redistribute it and/or modify<br>
 it under the terms of the GNU General Public License as published by<br>
@@ -65,13 +76,14 @@ For more details see [GNU General Public License v3](https://www.gnu.org/license
 
 <b>DQuickLTFit</b> is written in C++ using the [Qt-Framework](https://www.qt.io/) licensed under the [GNU General Public License v3](https://www.gnu.org/licenses/gpl-3.0)
 
-The following 3rd party libraries are used by <b>DQuickLTFit</b> software.<br>
+The following 3rd party library is used by <b>DQuickLTFit</b> software.<br>
+
+### ``MPFIT (MINPACK-1)``
+* [MPFIT: A MINPACK-1 Least Squares Fitting Library in C](https://www.physics.wisc.edu/~craigm/idl/cmpfit.html)<br>
 
-### ``MPFIT (ported from MINPACK-1)``
-* [A C library for solving the non-linear least-square problem using the Levenberg-Marquardt algorithm.](https://www.physics.wisc.edu/~craigm/idl/cmpfit.html)
-The disclaimer of MPFIT library can be found [here](/Fit/mpfit_DISCLAIMER).
+The disclaimer of MPFIT library can be found [here.](/Fit/mpfit_DISCLAIMER).
 
-# Deploy DQuickLTFit from Source Files using QtCreator<img src="https://github.com/dpscience/DQuickLTFit/blob/master/Images/IconPNGRounded.png" width="25" height="25">
+# Deploy DQuickLTFit from Sources using QtCreator<img src="https://github.com/dpscience/DQuickLTFit/blob/master/Images/IconPNGRounded.png" width="25" height="25">
 
 * Download the QtCreator and the [Qt-framework](https://www.qt.io/download) (at least v5.x).
 * Download and Setup the MS Visual Studio compiler (at least version 2013). It should also work with any other compiler e.g. MinGW but I recommend using VS compiler.