Added test coverage pushing.

Author: supercom32

.github/workflows/build.yml

@@ -18,5 +18,11 @@ jobs:
       with:
         go-version: 1.15
 
-    - name: Test
+    - name: Run Tests
       run: go test -v ./...
+      
+    - name: Get Test Coverage
+      run: |
+        go test -coverprofile=coverage.txt
+        bash <(curl -s https://codecov.io/bash)
+