Update plan information for rum (#26644)

Author: angelampcosta

src/content/docs/speed/observatory/index.mdx

@@ -35,4 +35,6 @@ You can also compare network tests in Observatory by selecting any two completed
 
 Real user monitoring (also known as RUM), on the other hand, captures real metrics from real users accessing a website. This provides information that synthetic tests cannot capture, as users might access your website from different parts of the world, with different network conditions, ISPs, browsers and computer hardware. However, RUM data is only applied to your own website. Real user data also includes two user interaction metrics that synthetic tests do not offer - [First Input Delay (FID)](https://web.dev/fid/) and [Interaction to Next Paint (INP)](https://web.dev/inp/).
 
+Free customers have RUM enabled automatically, with EU traffic excluded, and can switch it off if they prefer. Customers on other plans may enable RUM as needed.
+
  <LinkButton variant="primary" href="/speed/observatory/run-speed-test/">Run test</LinkButton>

src/content/docs/speed/observatory/rum-beacon.mdx

@@ -51,7 +51,9 @@ The RUM beacon script does not store any data in the browser or access any stora
 
 ## RUM excluding EEA/EU
 
-Customers have the option to enable RUM globally or to limit its application to exclude users connecting to Cloudflare data centers in the EEA/EU. If the latter option is selected, the RUM beacon does not process performance data for users connecting to a Cloudflare data center located in the following countries (ISO codes): AT, BE, BG, HR, CY, CZ, DK, EE, FI, FR, DE, GR, HU, IS, IE, IT, LV, LI, LT, LU, MT, NL, NO, PL, PT, RO, SK, SI, ES, SE, CH, GB.    
+Customers have the option to enable RUM globally or to limit its application to exclude users connecting to Cloudflare data centers in the EEA/EU. If the latter option is selected, the RUM beacon does not process performance data for users connecting to a Cloudflare data center located in the following countries (ISO codes): AT, BE, BG, HR, CY, CZ, DK, EE, FI, FR, DE, GR, HU, IS, IE, IT, LV, LI, LT, LU, MT, NL, NO, PL, PT, RO, SK, SI, ES, SE, CH, GB.   
+
+Free customers have RUM enabled automatically, with EU traffic excluded, and can switch it off if they prefer. Customers on other plans may enable RUM as needed.
 
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