fix: config example path matches quick start (~/.palinode)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Paul Kyle

palinode.config.yaml.example

@@ -9,7 +9,7 @@
 # -----------------------------------------------------------------------------
 # Where Palinode stores markdown memory files and the SQLite-vec index.
 # All paths below are relative to this directory unless absolute.
-memory_dir: "~/palinode"
+memory_dir: "~/.palinode"
 
 # SQLite-vec database location (relative to memory_dir)
 db_path: ".palinode.db"