added dockerfiles and edited readme

Docker/Linux/Dockerfile

@@ -0,0 +1,19 @@
+FROM gcc:latest
+MAINTAINER luki42
+
+RUN \
+    \
+    # Install texlive
+    echo "instaling cmake" && \
+    apt-get update && \
+    apt-get install -y --no-install-recommends cmake libgtest-dev && \
+    echo "installing build dependencies" && \
+    apt-get install -y --no-install-recommends libcurl4-openssl-dev libconfig++-dev && \
+    echo "installing packaging tools" && \
+    apt-get install -y --no-install-recommends dpkg rpm && \
+    # clean up
+    apt-get clean
+
+# Expose /home as workin dir
+WORKDIR /home
+VOLUME ["/home"]

Docker/Windows/Dockerfile

@@ -0,0 +1,20 @@
+FROM fedora:33
+MAINTAINER luki42
+
+RUN \
+    \
+    # Install texlive
+    echo "instaling cmake" && \
+    dnf install -y mingw64-gcc-c++ mingw64-curl-static mingw64-qt5-qtbase wget cmake make tar xz mingw32-nsis gtest gtest-devel && \
+    wget http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-libconfig-1.7.2-1-any.pkg.tar.xz && \
+    tar -xf mingw-w64-x86_64-libconfig-1.7.2-1-any.pkg.tar.xz && \
+    mv ./mingw64/bin/* /usr/x86_64-w64-mingw32/sys-root/mingw/bin && \
+    mv ./mingw64/include/* /usr/x86_64-w64-mingw32/sys-root/mingw/include && \
+    mv ./mingw64/lib/*.a /usr/x86_64-w64-mingw32/sys-root/mingw/lib && \
+    mv ./mingw64/lib/cmake/* /usr/x86_64-w64-mingw32/sys-root/mingw/lib/cmake && \
+    rm -Rv mingw-w64-x86_64-libconfig-1.7.2-1-any.pkg.tar.xz mingw64 && \
+    #cleanup
+    dnf clean dbcache && dnf clean packages
+# Expose /home as workin dir
+WORKDIR /home
+VOLUME ["/home"]

README.md

@@ -2,6 +2,7 @@
 # DynuIPRefresher
 A lightweight C++ application to setup a service for refreshing a dynamic IP to the Dynu servers. 
 Dynu.com is a free DDns service and provides an API.
+There is also a GUI for Windows Users and beginners.
 
 ## Installation
 Download the latest Release at [Release_Page](https://github.com/Lukas-Heiligenbrunner/DynuIPRefresher/releases).
@@ -31,6 +32,17 @@ help page:
 [no argument] normal ip check and refresh
 ```
 
+### GUI 
+
+You can also build the grapical user inteface if you want. 
+There you can manually trigger a refresh in a gui and set all the config parameters.
+
+Home Page:
+![couldn't load image](https://i.ibb.co/syDwWQg/Screenshot-20200608-104253.png)
+
+Config Page:
+![couldn't load image](https://i.ibb.co/89vnJXY/Screenshot-20200608-104308.png)
+
 
 ## Build
 ## Basic Build
@@ -85,6 +97,10 @@ cd into downloaded files and Generate makefiles:
 
 `make package`
 
+### GUI Build
+
+please use the predefined Docker-Image here: 
+[DockerHub](https://hub.docker.com/repository/docker/luki42/dynuiprefresher_build)
 
 
 ### Windows cross build
@@ -99,5 +115,7 @@ Optional dependencies
 * NSIS Pack tool (for creating installer)
 * doxygen (for generating html doc)
 
-Some addition configuration of lib paths may be needed in CMakeList.txt. 
+The Simplest way to install all dependencies is the preconfigured Docker-Image:
+[DockerHub](https://hub.docker.com/repository/docker/luki42/dynuiprefresher_build)
+
 `make package` will pack it into a NSIS installer for Windows.