Update cursorrules with new instructions and tools (#27)

Author: grapeot

.cursorrules

@@ -5,6 +5,7 @@ During you interaction with the user, if you find anything reusable in this proj
 You should also use the `.cursorrules` file as a scratchpad to organize your thoughts. Especially when you receive a new task, you should first review the content of the scratchpad, clear old different task if necessary, first explain the task, and plan the steps you need to take to complete the task. You can use todo markers to indicate the progress, e.g.
 [X] Task 1
 [ ] Task 2
+
 Also update the progress of the task in the Scratchpad when you finish a subtask.
 Especially when you finished a milestone, it will help to improve your depth of task accomplishment to use the scratchpad to reflect and plan.
 The goal is to help you maintain a big picture as well as the progress of the task. Always refer to the Scratchpad when you plan the next step.
@@ -56,14 +57,12 @@ If needed, you can further use the `web_scraper.py` file to scrape the web page
 
 ## User Specified Lessons
 
-- You have a python venv in ./venv.
+- You have a python venv in ./venv. Use it.
 - Include info useful for debugging in the program output.
 - Read the file before you try to edit it.
-- Use LLM to perform flexible text understanding tasks. First test on a few files. After success, make it parallel.
 
 ## Cursor learned
 
-- For website image paths, always use the correct relative path (e.g., 'images/filename.png') and ensure the images directory exists
 - For search results, ensure proper handling of different character encodings (UTF-8) for international queries
 - Add debug information to stderr while keeping the main output clean in stdout for better pipeline integration
 - When using seaborn styles in matplotlib, use 'seaborn-v0_8' instead of 'seaborn' as the style name due to recent seaborn version changes