Add install to the Travis test and install docs.
diff --git a/.travis.yml b/.travis.yml
index e9407be..774bed7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -55,9 +55,10 @@
   - travis_retry wget --quiet -O - https://raw.githubusercontent.com/cpplint/cpplint/master/cpplint.py | python - --recursive src examples
   - mkdir -p build && cd build
   - rm -rf *
-  - cmake .. -GNinja -DLIB_PROTO_MUTATOR_WITH_ASAN=ON -DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON -DCMAKE_C_COMPILER=${CC_COMPILER} -DCMAKE_CXX_COMPILER=${CXX_COMPILER} -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
+  - cmake .. -GNinja -DLIB_PROTO_MUTATOR_WITH_ASAN=ON -DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON -DCMAKE_C_COMPILER=${CC_COMPILER} -DCMAKE_CXX_COMPILER=${CXX_COMPILER} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DCMAKE_INSTALL_PREFIX=/usr
 
 script:
   - export ASAN_OPTIONS=detect_leaks=0
   - ninja
   - ninja check
+  - DESTDIR="/tmp/testing/" ninja install
diff --git a/README.md b/README.md
index 1470339..5d1de73 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,16 @@
 `LIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON` to cmake to automatically download and
 build a working version of protobuf.
 
+Installation:
+
+```
+ninja
+sudo ninja install
+```
+
+This installs the headers, pkg-config, and static library.
+By default the headers are put in `/usr/local/include/libprotobuf-mutator`.
+
 ## Usage
 
 To use libprotobuf-mutator simply include