export tutorials changed in c161138 (#498)

Co-authored-by: dario-coscia <dario-coscia@users.noreply.github.com>

tutorials/tutorial11/tutorial.ipynb

@@ -36,9 +36,9 @@
     "import warnings\n",
     "\n",
     "from pina import Condition, Trainer\n",
-    "from pina.solver import PINN \n",
+    "from pina.solver import PINN\n",
     "from pina.model import FeedForward\n",
-    "from pina.problem import SpatialProblem \n",
+    "from pina.problem import SpatialProblem\n",
     "from pina.operator import grad\n",
     "from pina.domain import CartesianDomain\n",
     "from pina.equation import Equation, FixedValue\n",

tutorials/tutorial11/tutorial.py

@@ -13,7 +13,7 @@
 #
 # Let's start by importing useful modules, define the `SimpleODE` problem and the `PINN` solver.
 
-# In[1]:
+# In[ ]:
 
 
 try: