Apply suggestion from code review

Author: RebeccaTamachiro

src/content/docs/cloudflare-for-platforms/cloudflare-for-saas/start/advanced-settings/custom-origin.mdx

@@ -54,7 +54,7 @@ Choose how your custom hostname populates the SNI value with SNI rewrites:
 
 * Currently, SNI Rewrite is not supported for wildcard custom hostnames. Subdomains covered by a wildcard custom hostname send the custom origin server name as the SNI value.
 
-* In the [O2O context](/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/how-it-works/) (when requests are originating from a proxied hostname on zone also on Cloudflare), altering the SNI value to use host header is currently not supported.
+* In the [O2O context](/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/how-it-works/) (when requests are originating from a proxied hostname on a zone also on Cloudflare), changing the SNI value to use host header is currently not supported.
 
 * SNI overrides defined in an [Origin Rule](/rules/origin-rules/) will take precedence over SNI rewrites.