Added and updated documentation

main.py

@@ -1,7 +1,9 @@
-import tl.generator
+import parser.tl_generator
 
 if __name__ == '__main__':
-    if not tl.generator.tlobjects_exist():
-        print('Please run tl/generator.py at least once before continuing')
-    else:
-        pass
+    if not parser.tl_generator.tlobjects_exist():
+        print('First run. Generating TLObjects...')
+        parser.tl_generator.generate_tlobjects('scheme.tl')
+        print('Done.')
+
+    pass