Fixing typo in buid_site.sh
diff --git a/build_site.sh b/build_site.sh
index 95c8ea6..ce449f0 100755
--- a/build_site.sh
+++ b/build_site.sh
@@ -10,7 +10,7 @@
 export PATH=${GEM_HOME}/bin:$PATH
 bundle install --path ${GEM_HOME}
 bundle
-bundle exec jekyll build --destination $WORKDIR $WORKDIR
+bundle exec jekyll build --destination $WORKDIR
 git checkout asf-site
 git clean -f -d
 git pull origin asf-site