Fixes to serve-docs script. (#45)
Fixes to serve-docs script. (#45)

* Send SIGKILL to previous Jekyll process rather than SIGTERM, which
  does not kill the process on Linux.
* Return to original directory after running Jekyll command so that
  rebuild command works.

Fixes #31
bazelbuild/bazel-website,bazelbuild/bazel-website,davidzchen/bazel-website,bazelbuild/bazel-website,davidzchen/bazel-website,davidzchen/bazel-website,davidzchen/bazel-website