Update README to reflect always-prefix bullet conversion behavior

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

README.md

@@ -8,8 +8,8 @@ An [Obsidian](https://obsidian.md) plugin that transforms selected text into Uni
 - **Unicode Italic** — converts letters to sans-serif italic (𝘈𝘉𝘊 / 𝘢𝘣𝘤)
 - **Unicode Bold Italic** — converts letters to sans-serif bold italic (𝘼𝘽𝘾 / 𝙖𝙗𝙘)
 - **Remove Unicode Formatting** — converts any formatted Unicode characters back to plain ASCII
-- **Convert List Bullets to Arrow** — replaces leading `* ` bullet markers with `→ ` on each selected line
-- **Convert List Bullets to Em Dash** — replaces leading `* ` bullet markers with `— ` on each selected line
+- **Convert List Bullets to Arrow** — prefixes every selected line with `→ `, stripping any leading `* ` marker first
+- **Convert List Bullets to Em Dash** — prefixes every selected line with `— `, stripping any leading `* ` marker first
 - Non-mapped characters (punctuation, spaces, emoji, etc.) are passed through unchanged
 
 ## Usage
@@ -21,8 +21,8 @@ An [Obsidian](https://obsidian.md) plugin that transforms selected text into Uni
    - **Format as Unicode Italic**
    - **Format as Unicode Bold Italic**
    - **Remove Unicode Formatting** — reverses any of the above back to plain ASCII
-   - **Convert List Bullets to Arrow** — replaces `* ` prefixes with `→ `
-   - **Convert List Bullets to Em Dash** — replaces `* ` prefixes with `— `
+   - **Convert List Bullets to Arrow** — prefixes every line with `→ ` (strips `* ` if present)
+   - **Convert List Bullets to Em Dash** — prefixes every line with `— ` (strips `* ` if present)
 
 The selected text is replaced in place.