fix: LLS LMEval provider navigation (#62)

Author: ruivieira

docs/modules/ROOT/nav.adoc

@@ -15,7 +15,8 @@
 ** xref:lm-eval-tutorial.adoc[]
 *** xref:lm-eval-tutorial-toxicity.adoc[Toxicity Measurement]
 ** xref:gorch-tutorial.adoc[]
-** xref:lm-eval-lls-tutorial.adoc[]
+** xref:tutorials-llama-stack-section.adoc[]
+*** xref:lmeval-lls-tutorial.adoc[]
 * Components
 ** xref:trustyai-service.adoc[]
 ** xref:trustyai-operator.adoc[]

docs/modules/ROOT/pages/tutorials-llama-stack-section.adoc

@@ -0,0 +1,7 @@
+= Llama Stack Tutorials
+
+This section contains tutorials for working with Llama Stack in TrustyAI. These tutorials demonstrate how to use various Llama Stack components and providers to evaluate and work with language models.
+
+== Available Tutorials
+
+* xref:lmeval-lls-tutorial.adoc[Getting Started with LMEval Llama Stack External Eval Provider] - Learn how to evaluate your language model using the LMEval Llama Stack External Eval Provider