This patch clarifies the relationship between the CLI flags for local
service configuration and the bootstrap node identifier, where these
concepts are also expressed.
Signed-off-by: Harvey Tuch <htuch@google.com>
Make it more discoverable and in prep for adding new content.
Also make the use of "Envoy" in top level titles consistent.
We don't need to say "Envoy" in general as all of the documentation
is about Envoy.
Signed-off-by: Matt Klein <mklein@lyft.com>