docs: reorganise files (#1662)

Author: shahules786

docs/howtos/customizations/metrics/_metrics_llm_calls.md renamed to docs/howtos/applications/_metrics_llm_calls.md

@@ -1,4 +1,10 @@
 # Applications
 
 Ragas in action. Examples of how to use Ragas in various applications and
-usecases to solve problems you might encounter when your building.
+usecases to solve problems you might encounter when your building.
+
+
+## Metrics
+
+- [Debug LLM based metrics using tracing](_metrics_llm_calls.md)
+- [Estimate cost of evaluation](_cost.md)

docs/howtos/applications/index.md

@@ -11,9 +11,7 @@ How to customize various aspects of Ragas to suit your needs.
 - [Modify prompts in metrics](./metrics/_modifying-prompts-metrics.md)
 - [Write your own metrics](./metrics/_write_your_own_metric.md)
 - [Adapt metrics to target language](./metrics/_metrics_language_adaptation.md)
-- [Estimate cost of evaluation with metrics](metrics/_cost.md)
-- [Tracing evaluations with Observability tools](metrics/tracing.md)
-- [Debug LLM based metrics using tracing](metrics/_metrics_llm_calls.md)
+- [Trace evaluations with Observability tools](metrics/tracing.md)
 
 
 ## Testset Generation

docs/howtos/customizations/metrics/metrics_llm_calls.ipynb renamed to docs/howtos/applications/metrics_llm_calls.ipynb

@@ -86,7 +86,9 @@ nav:
               - howtos/customizations/testgenerator/index.md
       - Applications:
           - howtos/applications/index.md
-          - Cost Analysis: howtos/applications/_cost.md
+          - Metrics:
+            - Cost Analysis: howtos/applications/_cost.md
+            - Debug LLM Based Metrics: howtos/applications/_metrics_llm_calls.md
       - Integrations:
           - howtos/integrations/index.md
           - LlamaIndex: howtos/integrations/_llamaindex.md