Update README.md

Fix grammar

README.md

@@ -22,19 +22,19 @@ I'm also planning to record them in a more quiet environment and at a slower pac
     Topics: 1, 2, 3.  
     Slides: [01 - ML and spiral classification](slides/01%20-%20ML%20and%20spiral%20classification.pdf).  
     Notebooks: [01](01-tensor_tutorial.ipynb), [02](02-space_stretching.ipynb), [03](03-autograd_tutorial.ipynb), [04](04-spiral_classification.ipynb).  
-    Video: [01](https://youtu.be/u--4YzUQlj8), [02](https://youtu.be/panJ-pkaqBQ).
+    Videos: [01](https://youtu.be/u--4YzUQlj8), [02](https://youtu.be/panJ-pkaqBQ).
  2. Time slot 2 (1h30min + 45 min = 2h15min) on Wednesday afternoon  
-    Topics: 4.  
+    Topic: 4.  
     Slides: [02 - CNN](slides/02%20-%20CNN.pdf).  
-    Notebooks: [05](05-convnet.ipynb).  
-    Video: [03](https://youtu.be/jFK4odq_f0A), [04](https://youtu.be/ST73HFC4Lpo).
+    Notebook: [05](05-convnet.ipynb).  
+    Videos: [03](https://youtu.be/jFK4odq_f0A), [04](https://youtu.be/ST73HFC4Lpo).
  3. Extra section (45min) on Thursday afternoon  
-    Topics: 5.  
+    Topic: 5.  
     Slides: [03 - Generative models](slides/03%20-%20Generative%20models.pdf).  
     Notebooks: [06](06-autoencoder.ipynb), [07](07-VAE.ipynb).  
     Video: [05](https://youtu.be/PRKq8ztYkZw).
  4. Extra section (1h30min) on Friday morning  
-    Topics: 6.  
+    Topic: 6.  
     Slides: [04 - RNN](slides/04%20-%20RNN.pdf).  
     Notebooks: [08-1](08-1-classify_seq_data.ipynb), [08-2](08-2-echo_data.ipynb), [08-3](08-3-temporal_order_classification_experiments.ipynb), [08-4](08-4-echo_experiments.ipynb	).  
     Video: [06](https://youtu.be/S2kNR3R30s8).