added note to periodically execute last colab cell to save progress back to Drive.

Author: kevinzakka

assignments/2020/assignment1.md

@@ -5,7 +5,7 @@ mathjax: true
 permalink: /assignments2020/assignment1/
 ---
 
-This assignment is due on **Wednesday, April 22 2020**.
+This assignment is due on **Wednesday, April 22 2020** at 11:59pm PST.
 
 <details>
 <summary>Handy Download Links</summary>
@@ -64,7 +64,9 @@ from a popup window. The code cell will also automatically download the CIFAR-10
 5. Once you have completed the assignment question (i.e. reached the end of the notebook), you can save your edited files back to your Drive and move on to the next question. For your convenience, we also provide you with a code cell (the very last one) that automatically saves the modified files for that question back to your Drive.
 6. Repeat steps 3-5 for each remaining notebook.
 
-**Important:** Please make sure that you work on the Colab notebooks in the order of the questions (see below). Specifically, you should work on kNN first, then SVM, the Softmax, then Two-layer Net and finally on Image Features. The reason is that the code cells that get executed *at the end* of the notebooks save the modified files back to your drive and some notebooks may require code from previous notebook.
+**Note 1**. Please make sure that you work on the Colab notebooks in the order of the questions (see below). Specifically, you should work on kNN first, then SVM, the Softmax, then Two-layer Net and finally on Image Features. The reason is that the code cells that get executed *at the end* of the notebooks save the modified files back to your drive and some notebooks may require code from previous notebook.
+
+**Note 2**. Related to above, ensure you are periodically saving your notebook (`File -> Save`), and any edited `.py` files relevant to that notebook (i.e. **by executing the last code cell**) so that you don't lose your progress if you step away from the assignment and the Colab VM disconnects.
 
 Once you have completed all Colab notebooks **except `collect_submission.ipynb`**, proceed to the [submission instructions](#submitting-your-work).
 
@@ -108,7 +110,7 @@ as opposed to using raw pixel values.
 
 ### Submitting your work
 
-**Important:** Please make sure that the submitted notebooks have been run and the cell outputs are visible.
+**Important**. Please make sure that the submitted notebooks have been run and the cell outputs are visible.
 
 Once you have completed all notebooks and filled out the necessary code, there are **_two_** steps you must follow to submit your assignment: