feat(node): add starlette framework (#443)

diagrams/programming/framework.py

@@ -56,6 +56,10 @@ class Spring(_Framework):
     _icon = "spring.png"
 
 
+class Starlette(_Framework):
+    _icon = "starlette.png"
+
+
 class Vue(_Framework):
     _icon = "vue.png"
 

docs/nodes/programming.md

@@ -46,6 +46,7 @@ Node classes list of programming provider.
 - **diagrams.programming.framework.Rails**
 - **diagrams.programming.framework.React**
 - **diagrams.programming.framework.Spring**
+- **diagrams.programming.framework.Starlette**
 - **diagrams.programming.framework.Vue**
 
 ## programming.language