Update manual-instrumentation.md (#395)

* Update manual-instrumentation.md

* Add overhead title tweak

Author: theletterf

docs/reference/edot-python/overhead.md

@@ -13,7 +13,7 @@ products:
   - id: edot-sdk
 ---
 
-# Performance overhead of the EDOT SDK for Python
+# Performance overhead of the Elastic Distribution of OpenTelemetry Python
 
 This page explains the performance considerations when instrumenting Python applications with the Elastic Distribution of OpenTelemetry SDK, including impact analysis and mitigation techniques.
 

docs/reference/edot-python/setup/manual-instrumentation.md

@@ -13,7 +13,7 @@ products:
   - id: edot-sdk
 ---
 
-# Manual instrumentation for Python with Elastic OpenTelemetry SDK
+# Manual instrumentation using the Elastic Distribution of OpenTelemetry Python
 
 Learn how to manually instrument Python applications using the {{edot}} Python SDK to add spans, metrics, and custom attributes. The following instructions require auto-instrumentation with OpenTelemetry to have been added to your application per [Setup](/reference/edot-python/setup/index.md).