bashrc: silence output from ssh-add

bash/bashrc

@@ -37,5 +37,5 @@ export NVM_DIR="$HOME/.nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
 [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
 
-eval $(ssh-agent)
-ssh-add $HOME/.ssh/github
+eval $(ssh-agent) > /dev/null
+ssh-add -q $HOME/.ssh/github > /dev/null