chore: Update Badges on Docs (#764)

docs/index.md

@@ -11,6 +11,9 @@
   <a href="https://circleci.com/gh/containrrr/watchtower">
     <img alt="Circle CI" src="https://circleci.com/gh/containrrr/watchtower.svg?style=shield" />
   </a>
+  <a href="https://codecov.io/gh/containrrr/watchtower">
+    <img alt="Codecov" src="https://codecov.io/gh/containrrr/watchtower/branch/master/graph/badge.svg?token=8pxWgB380Y">
+  </a>
   <a href="https://godoc.org/github.com/containrrr/watchtower">
     <img alt="GoDoc" src="https://godoc.org/github.com/containrrr/watchtower?status.svg" />
   </a>
@@ -26,13 +29,10 @@
   <a href="https://www.apache.org/licenses/LICENSE-2.0">
     <img alt="Apache-2.0 License" src="https://img.shields.io/github/license/containrrr/watchtower.svg" />
   </a>
-  <a href="https://www.codacy.com/app/simskij/watchtower">
-    <img alt="Codacy Badge" src="https://api.codacy.com/project/badge/Grade/3a4d0fcfd26d45b09b1d7ea3c8c13744"/>
-  </a>
-  <a href="https://www.codacy.com/app/simskij/watchtower?utm_source=github.com&utm_medium=referral&utm_content=containrrr/watchtower&utm_campaign=Badge_Coverage">
-    <img alt="Codacy Badge" src="https://api.codacy.com/project/badge/Coverage/3a4d0fcfd26d45b09b1d7ea3c8c13744" />
+  <a href="https://www.codacy.com/gh/containrrr/watchtower/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=containrrr/watchtower&amp;utm_campaign=Badge_Grade">
+    <img alt="Codacy Badge" src="https://app.codacy.com/project/badge/Grade/1c48cfb7646d4009aa8c6f71287670b8"/>
   </a>
-  <a href="#contributors">
+  <a href="https://github.com/containrrr/watchtower/#contributors">
     <img alt="All Contributors" src="https://img.shields.io/badge/all_contributors-30-orange.svg?style=flat-square" />
   </a>
   <a href="https://hub.docker.com/r/containrrr/watchtower">