docs: fixed headers in grafana docs

* added grafana to decisions

* fixed headers

docs/modules/decisions/pages/use-golden-signals.adoc

@@ -1,19 +1,19 @@
-=== Use golden signals
+= Use golden signals
 
 - Status: accepted
 - Date: 2025-01-09
 
-==== Context and Problem Statement
+== Context and Problem Statement
 
 To ensure the reliability and performance of the application, we need a monitoring strategy that provides actionable insights into system health and user experience. A structured approach to identifying and addressing performance bottlenecks or failures is essential.
 
 Golden signals (latency, traffic, errors, and saturation) are widely recognized as the key indicators for monitoring distributed systems and identifying potential issues before they impact users.
 
-==== Considered Options
+== Considered Options
 
 - https://sre.google/sre-book/monitoring-distributed-systems/#xref_monitoring_golden-signals[Golden Signals] (latency, traffic, errors, saturation)
 
-==== Decision Outcome
+== Decision Outcome
 
 Chosen option: "`Golden Signals`", because
 
@@ -26,7 +26,7 @@ Chosen option: "`Golden Signals`", because
 - They allow for proactive identification of issues and facilitate targeted alerting and troubleshooting.
 
 
-==== Consequences
+== Consequences
 
 Monitoring will focus on the following four signals:
 

docs/modules/decisions/pages/use-grafana-prometheus.adoc

@@ -1,18 +1,18 @@
-=== Use Observability and Telemetry
+= Use Observability and Telemetry
 
 - Status: accepted
 - Date: 2025-01-07
 
-==== Context and Problem Statement
+== Context and Problem Statement
 
 A monitoring system that stores and visualizes system metrics will be needed to ensure the reliability and performance of the application.
 
-==== Considered Options
+== Considered Options
 
 - https://grafana.com/docs/grafana/latest/getting-started/get-started-grafana-prometheus/[Grafana + Prometheus]: Grafana provides visualization and Prometheus provides metrics collection.
 - https://hexdocs.pm/telemetry/[Telemetry] library with https://hexdocs.pm/phoenix_live_dashboard/Phoenix.LiveDashboard.html[Phoenix LiveDashboard]: LiveDashboard lacks customizability and Telemetry doesn't persist metrics by itself.
 
-==== Decision Outcome
+== Decision Outcome
 
 The following technologies will be used.
 
@@ -24,14 +24,14 @@ The following technologies will be used.
 - https://vector.dev/[Vector.dev] for log distribution.
 - https://kafka.apache.org/[Kafka] for event pipelines.
 
-==== Consequences
+== Consequences
 
 - Grafana will be used to build and maintain dashboards.
 - Infrastructure might require additional resources for deploying Prometheus and Grafana instances.
 - Grafana, Prometheus, Tempo and Kafka will be optional extensions.
 - Loki, Vector and Open Telemetry will be part of the core.
 
-==== Links
+== Links
 
 - https://hexdocs.pm/telemetry_metrics_prometheus/TelemetryMetricsPrometheus.html
 - https://github.com/deadtrickster/prometheus-plugs