Build issue - Instructions seem incorect

Hello Everyone,

when building boringtun based on the READMEI get the following error

Executable: cargo build --bin boringtun --release [--target $(TARGET_TRIPLE)]
specifically using this
cargo build --bin boringtun --release

I get the following error
error: no bin target named `boringtun'

looking at the Azure CI pipeline it looks like the command is actualy
cargo build --bin boringtun-cli --release

That seems to work, not sure if the main README needs to be updated?

Thanks,
Greg

Compare the README build command with the working cargo build --bin boringtun-cli --release command and the Azure CI pipeline. Update the README instruction to use the valid binary target, then verify the documented command builds successfully.

Written by the indexing model from the issue text.