Changed to top level folder to use readFile

Author: lamATnginx

content/_banners/eos-cltr.md renamed to _banners/eos-cltr.md

@@ -1,6 +1,3 @@
----
-title: NGINX Controller EOS Banner
----
 {{< banner "warning" "End of Sale Notice:" >}}
   F5 NGINX is announcing the <strong>End of Sale (EoS)</strong> for NGINX Controller Application Delivery Module, <strong>effective January 1, 2024</strong>.
   <br><br>

content/_banners/eos-mesh.md renamed to _banners/eos-mesh.md

@@ -1,6 +1,3 @@
----
-title: NGINX Service Mesh EOS Banner
----
 {{< banner "warning" "End of Sale Notice:" >}}
   F5 NGINX is announcing the <strong>End of Sale (EoS)</strong> for NGINX Management Suite API Connectivity Manager Module, <strong>effective January 1, 2024</strong>.
   <br><br>

content/_banners/upgrade-r33.md renamed to _banners/upgrade-r33.md

@@ -1,6 +1,3 @@
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-title: R33 Upgrade Banner
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 {{< banner "caution" "Important: NGINX Plus R33 requires NGINX Instance Manager 2.18 or later" >}}
   To ensure uninterrupted traffic processing, upgrade to NGINX Instance Manager 2.18 or later if your NGINX data plane instances are running NGINX Plus R33. This upgrade is necessary to support usage reporting.
   <br><br>