Remove "Why Testo?" button from index.md

Author: roxblnfk

index.md

@@ -18,9 +18,6 @@ hero:
     - theme: brand
       text: Get Started
       link: /docs/getting-started
-    - theme: alt
-      text: Why Testo?
-      link: /docs/why-testo
     - theme: alt
       text: GitHub
       link: https://github.com/php-testo/testo

ru/index.md

@@ -18,9 +18,6 @@ hero:
     - theme: brand
       text: Начать
       link: /ru/docs/getting-started
-    - theme: alt
-      text: Почему Testo?
-      link: /ru/docs/why-testo
     - theme: alt
       text: GitHub
       link: https://github.com/php-testo/testo