Added tkinter snippet

Author: legopitstop

snippets/python/[tkinter]/basics/hello-world.md

@@ -0,0 +1,22 @@
+---
+title: Hello, World!
+description: Creates a basic Tkinter window with a "Hello, World!" label.
+author: Legopitstop
+tags: app,hello-world,object-oriented
+---
+
+```py
+from tkinter import Tk, Label
+
+class App(Tk):
+    def __init__(self):
+        Tk.__init__(self)
+        self.geometry("100x100")
+
+        self.lbl = Label(self, text='Hello, World!')
+        self.lbl.pack(expand=1)
+
+# Usage:
+root = App()
+root.mainloop()
+```