Add comments to document commit ordering fix

Author: jovnc

hands_on/branch_delete.py

@@ -31,5 +31,9 @@ def download(verbose: bool):
     commit("Add fantasy.txt", verbose)
 
     checkout("main", False, verbose)
+
+    # Sleep to ensure that the commit timestamps are different to ensure correct git revision graph in git log
     time.sleep(1)
+
+
     merge_with_message("textbooks", False, "Merge branch textbooks", verbose)

hands_on/branch_rename.py

@@ -44,5 +44,8 @@ def download(verbose: bool):
     commit("Add fantasy.txt", verbose)
 
     checkout("main", False, verbose)
+
+    # Sleep to ensure that the commit timestamps are different to ensure correct git revision graph in git log
     time.sleep(1)
+    
     merge_with_message("textbooks", False, "Merge branch textbooks", verbose)

hands_on/early_branch.py

@@ -63,5 +63,8 @@ def download(verbose: bool):
     checkout("main", False, verbose)
     append_to_file("tennis.txt", "Martina Navratilova")
     add(["tennis.txt"], verbose)
+
+    # Sleep to ensure that the commit timestamps are different to ensure correct git revision graph in git log
     time.sleep(1)
+    
     commit("Add Martina to tennis.txt", verbose)