message: Update build_ngx_pagespeed_from_source.html
  Update to the build description work after the repo transfer
  Fixes
diff: @@ -96,11 +96,12 @@ First download ngx_pagespeed:
  <pre>
  #[check the <a href="release_notes">release notes</a> for the latest version</a>]
  -NPS_VERSION=1.12.34.2-stable
  +NPS_VERSION=1.13.35.1-beta
  cd
  wget https://github.com/pagespeed/ngx_pagespeed/archive/v${NPS_VERSION}.zip
  unzip v${NPS_VERSION}.zip
  -cd ngx_pagespeed-${NPS_VERSION}/
  +nps_dir=$(find . -name "*pagespeed-ngx-${NPS_VERSION}" -type d)
  +cd "$nps_dir"
  NPS_RELEASE_NUMBER=${NPS_VERSION/beta/}
  NPS_RELEASE_NUMBER=${NPS_VERSION/stable/}
  psol_url=https://dl.google.com/dl/page-speed/psol/${NPS_RELEASE_NUMBER}.tar.gz
  @@ -119,7 +120,7 @@ cd
  wget http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz
  tar -xvzf nginx-${NGINX_VERSION}.tar.gz
  cd nginx-${NGINX_VERSION}/
  -./configure --add-module=$HOME/ngx_pagespeed-${NPS_VERSION} ${PS_NGX_EXTRA_FLAGS}
  +./configure --add-module=$HOME/$nps_dir ${PS_NGX_EXTRA_FLAGS}
  make
  sudo make install
  </pre>
  