[docs] Preserve README links during markdown cleanup

Author: justfinethanku

recipes/obsidian-vault-import/README.md

@@ -164,7 +164,7 @@ The dry run (`--dry-run`) also runs the scanner, so you can review what would be
 The script uses a hybrid chunking strategy to turn notes into atomic thoughts:
 
 1. **Short notes** (under 500 words) become a single thought.
-2. **Notes with headings** are split at `##` boundaries — each section becomes one thought.
+2. **Notes with headings** are split at `## ` boundaries — each section becomes one thought.
 3. **Long sections** (over 1000 words) are sent to an LLM (gpt-4o-mini via OpenRouter) which distills them into 1-3 standalone thoughts.
 
 Use `--no-llm` to skip step 3 if you want to avoid LLM costs. Heading-based splitting still works.