Add test workflow

Signed-off-by: Sayan Nandan <[email protected]>

Author: ohsayan

.github/workflows/test.yml

@@ -0,0 +1,17 @@
+name: Test
+
+on: [push, pull_request, release]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build
+        run: cargo build
+      - name: Run tests
+        run: cargo test

README.md

@@ -1,6 +1,6 @@
 # `derived`: Macros for the boring stuff
 
-[![Crates.io](https://img.shields.io/crates/v/derived?style=flat-square)](https://crates.io/crates/derived) [![docs.rs](https://img.shields.io/docsrs/derived?style=flat-square)](https://docs.rs/derived) [![GitHub](https://img.shields.io/github/license/ohsayan/derived?style=flat-square)](./LICENSE)
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/ohsayan/derived/Test?style=flat-square) [![Crates.io](https://img.shields.io/crates/v/derived?style=flat-square)](https://crates.io/crates/derived) [![docs.rs](https://img.shields.io/docsrs/derived?style=flat-square)](https://docs.rs/derived) [![GitHub](https://img.shields.io/github/license/ohsayan/derived?style=flat-square)](./LICENSE)
 
 The `derived` crate provides macros that can simplify all the boring stuff, like writing constructors for example.