Update configuration.mdx (#19294)

Fixing copy pasta

Author: sdawka

src/content/docs/workers/wrangler/configuration.mdx

@@ -439,7 +439,7 @@ A [browser binding](/workers/runtime-apis/bindings/) will provide your Worker wi
 
 - `binding` <Type text="string" /> <MetaInfo text="required" />
 
-  - The binding name used to refer to the D1 database. The value (string) you set will be used to reference this database in your Worker. The binding must be [a valid JavaScript variable name](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Grammar_and_types#variables). For example, `binding = "MY_DB"` or `binding = "productionDB"` would both be valid names for the binding.
+  - The binding name used to refer to the browser binding. The value (string) you set will be used to reference this headless browser in your Worker. The binding must be [a valid JavaScript variable name](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Grammar_and_types#variables). For example, `binding = "HEAD_LESS"` or `binding = "simulatedBrowser"` would both be valid names for the binding.
 
 Example: