Deploy docs via travis

.travis.yml

@@ -1,3 +1,13 @@
 language: crystal
 script:
   - make test
+  - sed -i -e 's:<.*>::g' README.md
+  - crystal docs
+deploy:
+  provider: pages
+  skip_cleanup: true
+  github_token: $GITHUB_TOKEN
+  project_name: ameba
+  on:
+    branch: master
+  local_dir: doc

README.md

@@ -41,14 +41,14 @@ Compile and install `ameba` binary onto your system while running `crystal deps`
 
 ### OS X
 
-```
+```sh
 $ brew tap veelenga/tap
 $ brew install ameba
 ```
 
 ### From sources
 
-```
+```sh
 $ git clone https://github.com/veelenga/ameba && cd ameba
 $ make install
 ```