fix broken links on landing page and add index page under /features (#107)

Author: DebashisBorgohainO2

docs/features/index.md

@@ -0,0 +1,20 @@
+---
+title: Features Overview
+description: Explore the key observability features offered by OpenObserve, including logs, metrics, traces, and frontend monitoring.
+---
+
+# OpenObserve Features
+
+OpenObserve provides a complete suite of observability tools designed for performance, scalability, and ease of use. This section introduces the core features available in OpenObserve, including distributed tracing, metrics, logs, frontend observability, and enterprise-grade capabilities.
+
+## Explore Features
+
+- [Logs](../features/logs/)
+- [Metrics](../features/metrics/)
+- [Distributed Tracing](../features/distributed-tracing/)
+- [Frontend Observability](../features/frontend/)
+- [Enterprise Features](../features/enterprise/)
+
+
+
+

docs/index.md

@@ -48,8 +48,8 @@ OpenObserve's architectural approach can transform how you handle observability
 
 **Next Steps:**
 
-- Explore our comprehensive [Feature List](../features/logs.md) to see all capabilities
-- Check out [Getting Started Guide](../getting-started.md) to start exploring
+- Explore our comprehensive [Feature List](../docs/features/) to see all capabilities
+- Check out [Getting Started Guide](../docs/getting-started/) to start exploring
 - Join our [Community](https://github.com/openobserve/openobserve/discussions) to connect with other users
 
 *Sleep better at night knowing your observability stack is both powerful and affordable*