Add these tips in README

[ykdojo]

• Best to keep each file under 100 lines of code, particularly for writing
• Writing more than ~80 lines of code at once is not recommended. It's slow and it might not even be able to finish the task.
• You can have it read more code though. However, reading more than 500-600 lines of code at once is not recommended.
• If the target file you want to edit is long, you may want to explicitly ask it to use search and replace.
• It may not get the intention of your instructions right away. It's meant to be a conversational tool.
• If the assistant starts hallucinating, it may be helpful to start a new conversation or limit the length of each file being loaded.