tree ba04512bef3ee8e90472d9d18ead250314154ad5
parent 4cb4dcfb9cadec6cfb7f0183f41d3e5417cf4cb2
author Di Xiao <xiaodi.larry@gmail.com> 1494972892 -0700
committer Di Xiao <dixiao@google.com> 1495572953 +0000

spanner: docs, remind to close client

Change-Id: I01ff513467364776f574fa98f448c6393d2a281b
Reviewed-on: https://code-review.googlesource.com/13210
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: kokoro <noreply+kokoro@google.com>