Add Codecov configuration file

codecov.yml

@@ -0,0 +1,32 @@
+# Codecov configuration
+# https://docs.codecov.com/docs/codecov-yaml
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: false
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: false
+
+  range: 50..100
+
+comment:
+  layout: "reach, diff, flags, files"
+  behavior: default
+  require_changes: false
+  require_base: false
+  require_head: true
+
+ignore:
+  - "spec/**/*"
+  - "test/**/*"
+  - "config/**/*"
+  - "db/**/*"
+  - "vendor/**/*"
+  - "node_modules/**/*"