Minor improvements and added image

.github/workflows/rust.yml

@@ -0,0 +1,22 @@
+name: Rust
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build
+      run: cargo build --verbose --release
+    - name: Run tests
+      run: cargo test --verbose --release

README.md

@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.com/umgefahren/image-comp-lib-rust.svg?token=QgymLih6uzHxZpY4r8EA&branch=main)](https://travis-ci.com/umgefahren/image-comp-lib-rust)
+
 # img_comp_lib
 Image Compression Library