duplicate instruction in `setting-up-cosmovisor` docs

[gokul656]

First, find the location of the binary you want to use:

which junod

Then use the path returned to copy it to the directory Cosmovisor expects. Let's assume the previous command returned /home/your-user/go/bin/junod:

cp $HOME/go/bin/junod $DAEMON_HOME/cosmovisor/genesis/bin

cp $HOME/go/bin/junod $DAEMON_HOME/cosmovisor/genesis/bin

The above data is obtained from docs/validators/setting-up-cosmovisor.md there we can see the cp junod instruction is duplicated.

[gokul656]

Can I go-ahead and create a PR for fixing this ?