Add fly config for demo app

fly.toml

@@ -0,0 +1,41 @@
+# fly.toml file generated for pgweb-demo on 2022-11-14T11:19:39-06:00
+
+app = "pgweb-demo"
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[env]
+  SESSIONS = "1"
+
+[experimental]
+  allowed_public_ports = []
+  auto_rollback = true
+
+[processes]
+  web = "pgweb --bind=0.0.0.0"
+
+[[services]]
+  http_checks = []
+  internal_port = 8081
+  processes = ["web"]
+  protocol = "tcp"
+  script_checks = []
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 0
+    timeout = "2s"