added perspectiveB

hello.py

@@ -8,7 +8,7 @@ def hello_world():
     return 'Hello, World!'
 
 
-@app.route('/hello/')
-@app.route('/hello/<name>')
-def hello(name=None):
-    return render_template('hello.html', name=name)
+# @app.route('/hello/<name>')
+@app.route('/perspectiveB/')
+def perspectiveB():
+    return render_template('perspectiveB.html')