ci(codecov): add .codecov.yml

Author: olehan

.codecov.yml

@@ -0,0 +1,12 @@
+coverage:
+  range: 80..100
+  round: down
+  precision: 2
+
+  status:
+    project:
+      default:
+        enabled: yes
+        target: 95%
+        if_not_found: success
+        if_ci_failed: error

README.md

@@ -13,7 +13,7 @@
         <img alt="Travis Status" src="https://travis-ci.org/olehan/kek.svg">
     </a>
     <a href="https://codecov.io/gh/olehan/kek">
-        <img alt="Kek Code Coverage" src="https://img.shields.io/codecov/c/github/olehan/kek">
+        <img alt="Kek Code Coverage" src="https://codecov.io/gh/olehan/kek/branch/master/graph/badge.svg">
     </a>
     <a href="https://github.com/olehan/kek/blob/master/LICENSE">
         <img alt="Kek License" src="https://img.shields.io/github/license/mashape/apistatus.svg">