Add LGTM.com code quality badges

diff --git a/README.md b/README.md
index d6b127d8fe1c3464226c3bc7f3baba7cec1d3248..63bed113ce9cd29c5bd861763841b651468fa1d9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@ ccache – a fast compiler cache
 ==============================
 
 [![Build Status](https://travis-ci.org/ccache/ccache.svg?branch=master)](https://travis-ci.org/ccache/ccache)
+[![Code Quality: Cpp](https://img.shields.io/lgtm/grade/cpp/g/ccache/ccache.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/ccache/ccache/context:cpp)
+[![Total Alerts](https://img.shields.io/lgtm/alerts/g/ccache/ccache.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/ccache/ccache/alerts)
 
 ccache is a compiler cache. It speeds up recompilation by caching the result of
 previous compilations and detecting when the same compilation is being done