Update build.yml

Author: osalpekar

.github/workflows/build.yml

@@ -27,10 +27,10 @@ jobs:
         ls
         cd
         ls
-        mkdir temp
         mkdir .bundle
         bundle config path '~/vendor/bundle'
-        cd /work
+        git clone https://github.com/pytorch/pytorch.github.io.git
+        cd pytorch.github.io
         bundle install
 
         ## Yarn Install