Broken links to envoy docs in Examples README.md

[karim-elngr]

Description:

Links to envoy docs are broken in example's README.md.
The front proxy example links to: https://www.envoyproxy.io/docs/envoy/latest/install/sandboxes/front_proxy
After a bit of search I found the docs in the following link
https://www.envoyproxy.io/docs/envoy/latest/start/sandboxes/front_proxy
That problem occurs in the files I included in the relevant links section.
It could be that the docs links changed from /latest/install to /latest/start.

Relevant Links:

https://github.com/envoyproxy/envoy/blob/master/examples/front-proxy/README.md
https://github.com/envoyproxy/envoy/blob/master/examples/grpc-bridge/README.md
https://github.com/envoyproxy/envoy/blob/master/examples/jaeger-tracing/README.md
https://github.com/envoyproxy/envoy/blob/master/examples/zipkin-tracing/README.md

[danielhochman]

Thanks for the report @karim-elngr. Should be fixed now.