Update index.rst (NVIDIA#9080)

Removed best-practices.rst file

Signed-off-by: jgerh <163925524+jgerh@users.noreply.github.com>
Co-authored-by: Eric Harper <complex451@gmail.com>

docs/source/index.rst

@@ -41,7 +41,6 @@ For quick guides and tutorials, see the "Getting started" section below.
  :titlesonly:
 
  starthere/intro
- starthere/best-practices
  starthere/tutorials
 
 For more information, browse the developer docs for your area of interest in the contents section below or on the left sidebar.
@@ -86,4 +85,4 @@ For more information, browse the developer docs for your area of interest in the
  :name: Speech AI Tools
  :titlesonly:
 
- tools/intro
+ tools/intro