Add SEO updates (#12842)

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

Author: coolguyzone

docs/platforms/php/common/tracing/index.mdx

@@ -1,6 +1,6 @@
 ---
-title: Set Up Tracing
-description: "Learn how to enable tracing in your app and discover valuable performance insights of your application."
+title: Set Up Tracing in PHP
+description: "Learn how to set up and enable tracing in your PHP app and discover valuable performance insights of your application."
 sidebar_order: 4000
 ---
 
@@ -27,7 +27,7 @@ Learn more about tracing <PlatformLink to="/configuration/options/#tracing-optio
 
 ## Verify
 
-While you're testing, set <PlatformIdentifier name="traces-sample-rate" /> to `1.0`, as that ensures that every transaction will be sent to Sentry. Once testing is complete, you may want to set a lower <PlatformIdentifier name="traces-sample-rate" /> value, or switch to using <PlatformIdentifier name="traces-sampler" /> to selectively sample and filter your transactions, based on contextual data.
+While you're testing, set <PlatformIdentifier name="traces-sample-rate" /> to `1.0`, as that ensures that every transaction will be sent to Sentry. Once testing is complete, you may want to set a lower <PlatformIdentifier name="traces-sample-rate" /> value or switch to using <PlatformIdentifier name="traces-sampler" /> to selectively sample and filter your transactions, based on contextual data.
 
 ## Improve Response Time
 
@@ -37,7 +37,7 @@ Response time is somewhat impacted when you use the performance capabilities in
 
 Doing this will make the PHP process send requests to your local Relay, which will then forward them to Sentry, instead of sending requests to Sentry directly.
 
-To begin using Relay, check out our docs for [getting started](/product/relay/getting-started/).
+To begin using [Relay](/product/relay/), check out our docs for [getting started](/product/relay/getting-started/).
 We recommend using Relay in `managed` mode (which is the default).
 
 Follow the instructions in the Relay docs to send a test event through Relay to Sentry.