docs: fix grammar in comments

Author: kgryte

lib/node_modules/@stdlib/napi/argv-strided-float32array2d/README.md

@@ -186,7 +186,7 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
     // Retrieve add-on callback arguments:
     STDLIB_NAPI_ARGV( env, info, argv, argc, 8 );
 
-    // Convert the number of rows and columns to a C types:
+    // Convert the number of rows and columns to C types:
     STDLIB_NAPI_ARGV_INT64( env, M, argv, 0 );
     STDLIB_NAPI_ARGV_INT64( env, N, argv, 1 );
 

lib/node_modules/@stdlib/napi/argv-strided-float32array2d/include/stdlib/napi/argv_strided_float32array2d.h

@@ -59,7 +59,7 @@
 *     // Retrieve add-on callback arguments:
 *     STDLIB_NAPI_ARGV( env, info, argv, argc, 8 );
 *
-*     // Convert the number of rows and columns to a C types:
+*     // Convert the number of rows and columns to C types:
 *     STDLIB_NAPI_ARGV_INT64( env, M, argv, 0 );
 *     STDLIB_NAPI_ARGV_INT64( env, N, argv, 1 );
 *

lib/node_modules/@stdlib/napi/argv-strided-float64array2d/README.md

@@ -186,7 +186,7 @@ static napi_value addon( napi_env env, napi_callback_info info ) {
     // Retrieve add-on callback arguments:
     STDLIB_NAPI_ARGV( env, info, argv, argc, 8 );
 
-    // Convert the number of rows and columns to a C types:
+    // Convert the number of rows and columns to C types:
     STDLIB_NAPI_ARGV_INT64( env, M, argv, 0 );
     STDLIB_NAPI_ARGV_INT64( env, N, argv, 1 );
 

lib/node_modules/@stdlib/napi/argv-strided-float64array2d/include/stdlib/napi/argv_strided_float64array2d.h

@@ -59,7 +59,7 @@
 *     // Retrieve add-on callback arguments:
 *     STDLIB_NAPI_ARGV( env, info, argv, argc, 8 );
 *
-*     // Convert the number of rows and columns to a C types:
+*     // Convert the number of rows and columns to C types:
 *     STDLIB_NAPI_ARGV_INT64( env, M, argv, 0 );
 *     STDLIB_NAPI_ARGV_INT64( env, N, argv, 1 );
 *