Add example config

.gitignore

@@ -27,3 +27,4 @@ _testmain.go
 *.sublime-workspace
 .vscode/
 *~
+config.json

config.example.json

@@ -0,0 +1,6 @@
+{
+	"DatabaseHost": "localhost", 
+	"DatabaseUser": "user", 
+	"DatabasePassword": "thisismypassword", 
+	"DatabaseName": "budgeteer"
+}