Update stack with testnet onboarding changes (#1)

* Add enable onboarding flag in fixturenet script

* Use genesis file if present

* Modify setup repos link

* Update readme steps to run fixturenet stack using s0 genesis file

* Update genesis file mount path

* Update instructions for onboarding module flag

stack-orchestrator/compose/docker-compose-fixturenet-laconicd.yml

@@ -6,8 +6,10 @@ services:
     environment:
       TEST_AUCTION_ENABLED: ${TEST_AUCTION_ENABLED:-false}
       TEST_REGISTRY_EXPIRY: ${TEST_REGISTRY_EXPIRY:-false}
+      ONBOARDING_ENABLED: ${ONBOARDING_ENABLED:-false}
     volumes:
       - laconicd-data:/root/.laconicd
+      - genesis-config:/var/tmp
       - ../config/fixturenet-laconicd/create-fixturenet.sh:/docker-entrypoint-scripts.d/create-fixturenet.sh
     ports:
       - "6060"
@@ -25,3 +27,4 @@ services:
 
 volumes:
   laconicd-data:
+  genesis-config: