v1.3.1

• Fix firebase function access to the vm (c52e818)
• Add function syntax to readme (3f6d6f7)
• Merge pull request #57 from Ephasme/patch-3 (263bd36)
• Fix Typo (cce20d6)
• Merge pull request #55 from Ephasme/patch-1 (b4c5b96)
• Update README.md (9be0e50)