add example configuraion file

src/HttpApi/appsettings.Example.json

@@ -0,0 +1,46 @@
+{
+  "Logging": {
+    "Type": "SimpleConsole",
+    "LogLevel": "Information",
+    "TimestampFormat": "yyyy-MM-ddTHH:mm:ss.fffK",
+    "UseUtcTimestamp": true
+  },
+  "Localization": {
+    "DefaultCultureName": "en-US",
+    "CacheDuration": "00:00:30"
+  },
+  "JsonWebToken": {
+    "Issuer": "https://api.travel-guide.cuqmbr.xyz",
+    "Audience": "https://travel-guide.cuqmbr.xyz",
+    "IssuerSigningKey": "change-this-sufficiently-logn-string",
+    "AccessTokenValidity": "00:03:00",
+    "RefreshTokenValidity": "14.00:00:00"
+  },
+  "Datastore": {
+    "Type": "postgresql",
+    "ConnectionString": "Host=127.0.0.1;Port=5432;Username=postgres;Password=0000;Database=travel_guide;",
+    "PartitionName": "application",
+    "Migrate": true,
+    "SeedIdentity": true,
+    "SeedData": false
+  },
+  "PaymentProcessing": {
+    "CallbackAddressBase": "https://api.travel-guide.cuqmbr.xyz",
+    "ResultAddressBase": "https://travel-guide.cuqmbr.xyz",
+    "LiqPay": {
+      "PublicKey": "sandbox_xxxxxxxxxxxx",
+      "PrivateKey": "sandbox_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+    }
+  },
+  "Email": {
+    "Smtp": {
+      "Host": "mail.travel-guide.cuqmbr.xyz",
+      "Port": "465",
+      "UseTls": true,
+      "Username": "no-reply",
+      "Password": "super-secret-password",
+      "SenderAddress": "no-reply@travel-guide.cuqmbr.xyz",
+      "SenderName": "Travel Guide"
+    }
+  }
+}