Rename files to match naming convention

These file names do not adhere to the naming convention, -install -user ---guide.

./docs/getting-started-guide/project-specific-guides/tsdr.rst

./docs/user-guide/tsdr-elastic-search.rst

Rename and replace with:

 ./docs/getting-started-guide/project-specific-guides/tsdr-install.rst

./docs/user-guide/tsdr-elasticsearch-user-guide.rst