Apply suggestions from code review

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

Author: kgryte

lib/node_modules/@stdlib/math/base/napi/unary/README.md

@@ -306,14 +306,14 @@ void stdlib_math_base_napi_d_d( napi_env env, napi_callback_info info, double (*
 Macro for registering a Node-API module exporting an interface for invoking a unary function accepting a double-precision floating-point number and returning a single-precision floating-point number.
 
 ```c
-static float scale( const double x ) {
-    return x * 10.0f;
+static float fcn( const double x ) {
+    return (float)x;
 }
 
 // ...
 
 // Register a Node-API module:
-STDLIB_MATH_BASE_NAPI_MODULE_D_F( scale );
+STDLIB_MATH_BASE_NAPI_MODULE_D_F( fcn );
 ```
 
 The macro expects the following arguments:
@@ -331,8 +331,8 @@ Invokes a unary function accepting a double-precision floating-point number and
 
 // ...
 
-static float identityf( const double x ) {
-    return x;
+static float fcn( const double x ) {
+    return (float)x;
 }
 
 // ...
@@ -345,7 +345,7 @@ static float identityf( const double x ) {
 * @return       Node-API value
 */
 napi_value addon( napi_env env, napi_callback_info info ) {
-    return stdlib_math_base_napi_d_f( env, info, identityf );
+    return stdlib_math_base_napi_d_f( env, info, fcn );
 }
 
 // ...

lib/node_modules/@stdlib/math/base/napi/unary/include/stdlib/math/base/napi/unary/d_f.h

@@ -28,14 +28,14 @@
 * @param fcn   unary function
 *
 * @example
-* static float scale( const double x ) {
-*     return x * 10.0f;
+* static float fcn( const double x ) {
+*     return (float)x;
 * }
 *
 * // ...
 *
 * // Register a Node-API module:
-* STDLIB_MATH_BASE_NAPI_MODULE_D_F( scale );
+* STDLIB_MATH_BASE_NAPI_MODULE_D_F( fcn );
 */
 #define STDLIB_MATH_BASE_NAPI_MODULE_D_F( fcn )                                \
 	static napi_value stdlib_math_base_napi_d_f_wrapper(                       \