Docs: start redoing landing page

content/tutorials/get-started/get-started-using-http-websocket-apis.md

@@ -7,6 +7,7 @@ top_nav_name: HTTP / WebSocket
 top_nav_grouping: Get Started
 labels:
   - Development
+showcase_icon: assets/img/logos/globe.svg
 ---
 # Get Started Using HTTP / WebSocket APIs
 

content/tutorials/get-started/get-started-using-java.md

@@ -12,6 +12,7 @@ filters:
   - include_code
 labels:
   - Development
+showcase_icon: assets/img/logos/java.svg
 ---
 
 # Get Started Using Java

content/tutorials/get-started/get-started-using-node-js.ja.md

@@ -4,6 +4,7 @@ parent: get-started.html
 blurb: XRP Ledgerに照会するエントリーレベルのJavaScriptアプリケーションを構築します。
 labels:
   - 開発
+showcase_icon: assets/img/logos/javascript.svg
 ---
 # RippleAPI入門ガイド
 

content/tutorials/get-started/get-started-using-node-js.md

@@ -6,6 +6,7 @@ top_nav_name: JavaScript
 top_nav_grouping: Get Started
 labels:
   - Development
+showcase_icon: assets/img/logos/javascript.svg
 ---
 # Get Started Using Node.js
 

content/tutorials/get-started/get-started-using-python.md

@@ -9,6 +9,7 @@ filters:
   - include_code
 labels:
   - Development
+showcase_icon: assets/img/logos/python.svg
 ---
 
 # Get Started Using Python