more faq fixes

Author: Noah Raynor

fern/observability/simulations-quickstart.mdx

@@ -733,11 +733,11 @@ curl -X GET "https://api.vapi.ai/eval/simulation/run?status=ended" \
 
 <AccordionGroup>
   <Accordion title="How many concurrent simulations can I run?" icon="gauge">
-    Simulation concurrency follows your organization's call concurrency limits. Each **voice simulation** uses **2 concurrent call slots** (one for the AI tester, one for your assistant being tested). **Chat mode** simulations are more efficient since they don't require audio processing. If you need higher concurrency limits, contact support.
+    Simulation concurrency follows your organization's call concurrency limits. Each voice simulation uses 2 concurrent call slots (one for the AI tester, one for your assistant being tested). Chat mode simulations are more efficient since they don't require audio processing. If you need higher concurrency limits, contact support.
   </Accordion>
 
   <Accordion title="What's the difference between Simulations and Evals?" icon="scale-balanced">
-    **Simulations** use AI-powered testers that have actual conversations with your assistant, producing real call recordings and transcripts. **Evals** use mock conversations with predefined messages and judge the responses. Use Simulations for realistic end-to-end testing; use Evals for faster, more controlled validation.
+    Simulations use AI-powered testers that have actual conversations with your assistant, producing real call recordings and transcripts. Evals use mock conversations with predefined messages and judge the responses. Use Simulations for realistic end-to-end testing; use Evals for faster, more controlled validation.
   </Accordion>
 
   <Accordion title="Can I use my own structured outputs?" icon="table">