instead of 'develop', use 'master' as it is more stable.

.travis.yml

@@ -24,7 +24,7 @@ before_install:
 script:
   -  PATH=/tmp/go/bin:$PATH .travis/precommit.sh
   - |
-    export DEPLOY_DOCS_SH=https://raw.githubusercontent.com/PaddlePaddle/PaddlePaddle.org/develop/scripts/deploy/deploy_docs.sh
+    export DEPLOY_DOCS_SH=https://raw.githubusercontent.com/PaddlePaddle/PaddlePaddle.org/master/scripts/deploy/deploy_docs.sh
     export BOOK_DIR=`pwd`
     cd ..
     if [[ "$TRAVIS_PULL_REQUEST" == "false" ]] && [[ "$TRAVIS_BRANCH" == "develop"  ||  "$TRAVIS_BRANCH" =~ ^v[[:digit:]]+\.[[:digit:]]+(\.[[:digit:]]+)?(-\S*)?$ ]]; then curl $DEPLOY_DOCS_SH | bash -s $CONTENT_DEC_PASSWD $TRAVIS_BRANCH $BOOK_DIR; else echo "not develop branch, no deploy"; fi;