remove blank end lines

Author: dawnkelly09

.ai/README.md

@@ -63,7 +63,4 @@ The scripts for LLM-related files generation are located in `polkadot-docs/scrip
 
 ### Why use the `/.ai/pages` and `/.ai/categories` directories rather than ouputting the files to '/llms-files/' like before?
 
-- The Markdown files are located in a directory that is not included in the site build to prevent doubling the size of the website (one HTML file + one Markdown file for every page). This arrangement also prevents the resolved Markdown being converted into HTML elements, making them less effective for LLM consumption.
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+- The Markdown files are located in a directory that is not included in the site build to prevent doubling the size of the website (one HTML file + one Markdown file for every page). This arrangement also prevents the resolved Markdown being converted into HTML elements, making them less effective for LLM consumption.