doc: simplify wording in n-api doc

Simplify/clarify wording documenting n-api execute
callback.

PR-URL: #29441
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: mhdawson

doc/api/n-api.md

@@ -548,12 +548,12 @@ operations. Callback functions must satisfy the following signature:
 typedef void (*napi_async_execute_callback)(napi_env env, void* data);
 ```
 
-Implementations of this type of function should avoid making any N-API calls
-that could result in the execution of JavaScript or interaction with
-JavaScript objects. Most often, any code that needs to make N-API
-calls should be made in `napi_async_complete_callback` instead.
-Avoid using the `napi_env` parameter in the execute callback as
-it will likely execute JavaScript.
+Implementations of this function must avoid making N-API calls
+that execute JavaScript or interact with
+JavaScript objects.  N-API
+calls should be in the `napi_async_complete_callback` instead.
+Do not use the `napi_env` parameter as it will likely
+result in execution of JavaScript.
 
 #### napi_async_complete_callback
 <!-- YAML