feat(nginx): add nginx otel quickstart

Author: sairaj18

dashboards/nginx-otel/nginx-otel.json

@@ -0,0 +1,28 @@
+slug: nginx-otel
+title: NGINX (OpenTelemetry)
+summary: |
+  Monitoring NGINX is essential for maintaining healthy NGINX servers and prevents poor user experience in your web applications. Install New Relic NGINX for OpenTelemetry quickstart to proactively instrument NGINX with the OpenTelemetry nginxreceiver.
+description: |
+  ## How to monitor NGINX with New Relic?
+  The OpenTelemetry nginxreceiver collects metrics from your running NGINX instances. These metrics provide insights into connections, requests, client errors, server errors, and more.
+  A New Relic entity will be created for each NGINX instance, allowing you to easily explore, configure alerts, and compare metrics for all your NGINX servers in one place.
+  Our monitoring quickstart includes a pre-built dashboard that displays aggregated metrics from all of your NGINX instances, with the ability to filter the data for specific analyses.
+  ### Why monitor NGINX with New Relic?
+  New Relic NGINX for OpenTelemetry quickstart gives you comprehensive visibility into your NGINX web servers alongside your apps and server infrastructure. Monitoring NGINX is vital to obtain real-time performance metrics for web servers across your entire environment. This ensures optimal server operations, leading to better application performance and enhanced user experiences.
+icon: logo.svg
+level: New Relic
+authors:
+  - New Relic
+documentation:
+  - name: NGINX (OpenTelemetry) installation docs
+    description: |      
+      NGINX is a web server which can also be used as a reverse proxy, load balancer, mail proxy, and HTTP cache. Monitoring it provides insights into its operations and performance.
+    url: http://docs.newrelic.com/docs/opentelemetry/nginx/nginx-otel-host/
+
+keywords:
+  - open telemetry
+  - otel
+  - nginx
+  - nginxplus
+  - nginx plus
+  - infrastructure