Bit more refactoring

Author: Mich

src/config.h

@@ -2,6 +2,10 @@
 #define CONFIG_H
 
 #define VERSION "1.2"
-#define CHANGELOG_TEXT ""
 
+#define CHANGELOG_TEXT "Changelog - version " VERSION ": \n"
+
+#define INTRO_TEXT  "" \
+                    "Welcome to QtSerialMonitor, \n" \
+                    "Press F1 to activate \"What's this\" mode. In this mode, clicked widget will display an explanation about its function. \n"
 #endif // CONFIG_H