diff --git a/README.md b/README.md
index e2825fd..41abaed 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,9 @@ $ vi ...
 $ go get
 $ golit ...
 ```
+
+### Update Docs
+
+```console
+$ ./doc
+```
diff --git a/doc b/doc
old mode 100644
new mode 100755
index 916e911..1b58358
--- a/doc
+++ b/doc
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -e
+set -x
 
 go get
 golit main.go golit > /tmp/index.html
@@ -8,3 +8,4 @@ git checkout gh-pages
 cp /tmp/index.html .
 git commit -am "update docs"
 git push github gh-pages
+git co master