docs: update copy

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/_tools/eslint/rules/no-unnecessary-nested-functions/README.md

@@ -24,7 +24,7 @@ limitations under the License.
 
 <section class="intro">
 
-This rule enforces a convention in stdlib to only have functions defined inside of other functions if they need access to variables defined in the outer function scope. Otherwise, functions should always be elevated to the highest level (ideally module scope) to avoid redefining the functions per invocation.
+This rule enforces a best practice to only have functions defined inside of other functions if they need access to variables defined in the outer function scope. Otherwise, functions should always be elevated to the highest level (ideally module scope) to avoid redefining the functions per invocation.
 
 </section>