* docs: add docker pull tips

* docs: add docker pull tips

Fixed the location tags description from taosBenchmark

1. The CLI should come after Benchmark, otherwise it's confusing.
2. taos > shouldn't be in the command lines, otherwise users can copy and paste.
3. California.SanFrancisco doesn't match the current taosBenchmark

增加使用 win 宿主机时，curl 的正确姿势。