Update translate.md (#587)

Use sentence case for subtitles.

docs/kagi/ai/translate.md

@@ -1,33 +1,33 @@
 # Kagi Translate
 
-![Kagi Assistant - Research](./media/kagi_translate.png){width=700px data-zoomable}
+![Kagi Translate](./media/kagi_translate.png){width=700px data-zoomable}
 
 [Kagi Translate](https://translate.kagi.com) is a powerful language translation tool that supports 244 languages. It combines advanced language models to deliver accurate, context-aware translations while maintaining privacy.
 
-## Key Features
-- **Comprehensive Language Support**: Translate between 244 languages
-- **Context-Aware Translation**: Preserves meaning, tone, and style of original text
-- **Translation Options**: 
+## Key features
+- **Comprehensive language support**: Translate between 244 languages
+- **Context-aware translation**: Preserves meaning, tone, and style of original text
+- **Translation options**: 
   - Web page translation
   - Text selection translation
-- **Privacy-Focused**: Your translations are processed securely without storing personal data
+- **Privacy-focused**: Your translations are processed securely without storing personal data
 
 ## Benefits
 - **Accuracy**: Advanced language models ensure precise translations
-- **Natural Results**: Localizes idioms and cultural references appropriately
+- **Natural results**: Localizes idioms and cultural references appropriately
 - **Versatility**: Handles everything from short phrases to entire web pages
 - **Privacy**: Your translation data remains secure and private
 
-## How to Use
+## How to use
 
-### Text Translation
+### Text translation
 1. Select source language or choose "Detected" to identify automatically
 2. Select target language
 3. Type or copy and paste the text to translate
 4. Click the "Translate" button
 5. Translated text will appear in the output box. You can click the copy button to copy the translated text to your clipboard
 
-### Web Page Translation
+### Web page translation
 Option 1:
 1. Open [Kagi Translate](https://translate.kagi.com)
 2. Paste the website URL in the input box
@@ -38,9 +38,8 @@ Option 2:
 - Add ```translate.kagi.com/``` before any URL in your browser
   Example: ```translate.kagi.com/example.com```
 
-### Browser Bookmarklet
+### Browser bookmarklet
 1. Drag this link to your bookmarks bar: <a href="javascript:(function(){var%20selectedText=window.getSelection().toString().trim();window.location.href='https://translate.kagi.com/'+(selectedText?'?text='+encodeURIComponent(selectedText):encodeURIComponent(window.location.href));})();">Kagi Translate</a>
 2. Use the bookmarklet for:
    - Translating selected text: Select text, then click bookmarklet
    - Translating entire page: Click bookmarklet without selecting text
-