Add link to Gekko Discord
Add link to Gekko Discord

The Gekko Discord should also be linked in the Readme, not just in the default issue text. Also we don't need to link to the CryptoBots Discord IMO. It could be linked to in the Gekko server though.
BarnumD/gekko,BarnumD/gekko,askmike/gekko,askmike/gekko,BarnumD/gekko,askmike/gekko