Add docs for coverage services

Author: stringbean

README.md

@@ -6,6 +6,7 @@
 [![SBT 1.0 version](https://img.shields.io/badge/sbt_1.0-3.0.3-blue.svg)](https://bintray.com/stringbean/sbt-plugins/sbt-jacoco)
 
 This is an [sbt](http://scala-sbt.org/) plugin for code coverage analysis via [JaCoCo](http://www.eclemma.org/jacoco/).
+Supports uploading results to [Coveralls](https://coveralls.io) and [Codecov](https://codecov.io).
 
 Install the plugin by adding the following to `project/plugins.sbt`:
 

src/paradox/coverage-services.md

@@ -0,0 +1,39 @@
+# Coverage Services
+
+Examples of uploading to [Coveralls](https://coveralls.io/) and [Codecov](https://codecov.io/gh) can be found in the
+example project: [stringbean/sbt-jacoco-example](https://github.com/stringbean/sbt-jacoco-example)
+
+## Coveralls
+
+Enable the Coveralls plugin:
+
+```scala
+enablePlugins(JacocoCoverallsPlugin)
+```
+
+Then run `sbt jacocoCoveralls` to upload the results to Coveralls:
+
+```
+[info] Upload complete
+```
+
+<!-- TODO extra config -->
+
+## Codecov
+
+The Codecov uploader script will upload coverage automatically if the XML formatter is enabled. For example:
+
+```scala
+jacocoReportSettings := JacocoReportSettings(
+  "Jacoco Coverage Report",
+  None,
+  JacocoThresholds(),
+  Seq(JacocoReportFormats.ScalaHTML, JacocoReportFormats.XML), // note XML formatter
+  "utf-8")
+```
+
+With this enabled run the Codecov script:
+
+```shell
+bash <(curl -s https://codecov.io/bash)
+```

src/paradox/index.md

@@ -14,6 +14,7 @@ Key features of _sbt-jacoco_ include:
 * [Getting Started](getting-started.md)
 * [Integration Tests](integration-tests.md)
 * [Multi-Project Builds](multi-project.md)
+* [Coverage Services](coverage-services.md)
 * [Settings Reference](settings.md)
 * [Contributors](contributors.md)