Update DEVDOC.md for delve (#3720)
Update DEVDOC.md for delve (#3720)

Add an example of delve command for remote debugging in VSCode.

Bug: N/A
google/gapid,google/gapid,google/agi,google/agi,google/agi,google/agi,google/gapid,google/gapid,google/gapid,google/agi,google/agi,google/gapid,google/agi,google/agi,google/gapid,google/gapid