Update src/about.py

src/about.py

@@ -78,7 +78,7 @@ Note that we are in the process of compiling a full documentation for the submis
 
 #### Step 2: Implement your progress alignment challenge as a `Judge` class
 
-#### Step 3 (optional but recommended): Run the benchmark script on all challenges
+#### Step 3 (optional but recommended): Run the benchmark script on all algorithms
 
 #### Step 4: Submit the link to your codebase and (optional but recommended) the generated results as a JSON file
 """