Adds gh action

Author: computersarecool

.github/ci.yml

@@ -0,0 +1,26 @@
+name: Build
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ilammy/msvc-dev-cmd@v1
+      - name: Build on Windows
+        run: cl main.cpp
+        working-directory: ./src
+
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build on Linux
+        run: g++ main.cpp -o main
+        working-directory: ./src