make pageloads 2 words

Co-authored-by: Alex Krawiec <[email protected]>

Author: pry0rity

docs/product/sentry-basics/performance-monitoring.mdx

@@ -71,7 +71,7 @@ For basic frontend or backend performance monitoring, just turn on Tracing in yo
 
 ## How Performance Monitoring works under the hood
 
-Instead of instrumenting pageloads with specific metrics at certain set intervals, ie. `onLoad`, `onUnload`, `onError`, etc., Sentry makes an effort to automatically instrument the libraries you rely on, providing detailed telemetry for Web Vitals, file I/O, network requests, and more. This lets you see the performance impact of every request, and any errors that occur during that request. 
+Instead of instrumenting page loads with specific metrics at certain set intervals, like `onLoad`, `onUnload`, `onError`, etc., Sentry makes an effort to automatically instrument the libraries you rely on, providing detailed telemetry for Web Vitals, file I/O, network requests, and more. This lets you see the performance impact of every request, and any errors that occur during that request. 
 
 This differs substantially from other performance monitoring tools that only capture *predefined* metrics with much less granularity. All your holistic metrics in Sentry are backed up by the raw tracing data, so you can drill into any specific request or operation to get a detailed view of its performance