refactor: add 2 spaces in tp7 between function

tp7.py

@@ -25,6 +25,7 @@ class Actor(nn.Module):
         std = torch.exp(log_std)
         return mu, std
 
+
 class Critic(nn.Module):
     def __init__(self, state_dim):
         super().__init__()
@@ -53,6 +54,7 @@ def compute_gae(rewards, values, gamma, lam, next_value):
     advantages = (advantages - advantages.mean()) / (advantages.std() + 1e-8)
     return returns, advantages
 
+
 # ——— Entraînement ———
 def train_and_save():
     env = gym.make("Pusher-v5")
@@ -151,7 +153,7 @@ def train_and_save():
 
     torch.save(actor.state_dict(), "a2c_pusher.pth")
 
-# ——— Démonstration ———
+
 def show(weights_path="a2c_pusher.pth"):
     env = gym.make("Pusher-v5", render_mode="human")
     actor = Actor(env.observation_space.shape[0], env.action_space.shape[0])