Add some github workflow

Author: biaks

.github/workflows/cmake.yml

@@ -0,0 +1,30 @@
+name: CMake
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  BUILD_TYPE: Release
+
+jobs:
+  build:
+    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
+    # You can convert this to a matrix build if you need cross-platform coverage.
+    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Configure CMake
+      # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
+      # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
+      run: cmake -B ${{github.workspace}}/build -DIP_SOCKETS_CPP_LITE_BUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+
+    - name: Build
+      # Build your program with the given configuration
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}

readme.md

@@ -1,8 +1,10 @@
 # ip-sockets-cpp-lite 🔌
 
+[![Build examples](https://github.com/biaks/ip-sockets-cpp-lite/actions/workflows/cmake.yml/badge.svg)](https://github.com/biaks/ip-sockets-cpp-lite/actions/workflows/cmake.yml)
+
 **Simplicity. Lightweight. Cross-platform.**
 
-ip-sockets-cpp-lite is a fast, header-only, dependency-free, cross-platform C++ library that makes programming UDP/TCP sockets and working with IPv4/IPv6 addresses as easy as possible.
+It's a fast, header-only, dependency-free, cross-platform C++ library that makes programming UDP/TCP sockets and working with IPv4/IPv6 addresses as easy as possible.
 Forget about endless `getaddrinfo` calls, confusion with `sockaddr_in`/`sockaddr_in6`, and platform-specific workarounds.
 
 ```cpp