Add Latest Related Blog Links (#32387)

* Add latest related blog links.

* Trim blog title to fit better

Author: brett0000FF

content/en/getting_started/feature_flags/_index.md

@@ -8,6 +8,9 @@ further_reading:
 - link: 'https://www.datadoghq.com/blog/feature-flags/'
   tag: 'Blog'
   text: 'Ship features faster and safer with Datadog Feature Flags'
+- link: 'https://www.datadoghq.com/blog/experimental-data-datadog/'
+  tag: 'Blog'
+  text: 'How to bridge speed and quality in experiments through unified data'
 site_support_id: getting_started_feature_flags
 ---
 

content/en/opentelemetry/setup/otlp_ingest/metrics.md

@@ -23,6 +23,9 @@ further_reading:
   - link: "/metrics/otlp/?tab=summary#mapping"
     tag: "Documentation"
     text: "OTLP Metrics Mapping in Datadog"
+  - link: "https://www.datadoghq.com/blog/otlp-metrics-api/"
+    tag: "Blog"
+    text: "Ingest OTLP metrics directly into Datadog with the new OTLP Metrics API"
 site_support_id: otlp_agentless
 ---
 

content/en/synthetics/test_suites/_index.md

@@ -11,6 +11,9 @@ further_reading:
 - link: "/synthetics/troubleshooting/"
   tag: "Documentation"
   text: "Synthetic Monitoring Troubleshooting"
+- link: "https://www.datadoghq.com/blog/test-suites/"
+  tag: "Blog"
+  text: "Get organized, actionable insights from complex test environments"
 ---