Update index.mdx (#11302)

Author: mydea

docs/platforms/javascript/common/tracing/instrumentation/custom-instrumentation/index.mdx

@@ -246,5 +246,5 @@ if (span) {
 
 Please note that in certain scenarios, the span name will be overwritten by the SDK. This is the case for spans with any of the following attribute combinations:
 
-* Spans with `http.method` or `http.requrest.method` attributes will automatically have their name set to the method + the URL path
+* Spans with `http.method` or `http.request.method` attributes will automatically have their name set to the method + the URL path
 * Spans with `db.system` attributes will automatically have their name set to the system + the statement