fix: Markdown lint error

Author: Neerajpathak07

lib/node_modules/@stdlib/utils/object-inverse/README.md

@@ -107,9 +107,10 @@ var out = invert( obj, {
 ```javascript
 var randu = require( '@stdlib/random/base/randu' );
 var round = require( '@stdlib/math/base/special/round' );
+var keys = require( '@stdlib/utils/keys' );
 var invert = require( '@stdlib/utils/object-inverse' );
 
-var keys;
+var k;
 var arr;
 var out;
 var i;
@@ -121,8 +122,8 @@ for ( i = 0; i < arr.length; i++ ) {
 }
 // Invert the array to determine value frequency...
 out = invert( arr );
-keys = Object.keys( out );
-for ( i = 0; i < keys.length; i++ ) {
+k = keys( out );
+for ( i = 0; i < k.length; i++ ) {
     if ( out[ i ] ) {
         out[ i ] = out[ i ].length;
     } else {

lib/node_modules/@stdlib/utils/object-inverse/examples/index.js

@@ -21,9 +21,10 @@
 var objectKeys = require( '@stdlib/utils/keys' );
 var randu = require( '@stdlib/random/base/randu' );
 var round = require( '@stdlib/math/base/special/round' );
+var keys = require( '@stdlib/utils/keys' );
 var invert = require( './../lib' );
 
-var keys;
+var k;
 var arr;
 var out;
 var i;
@@ -35,8 +36,8 @@ for ( i = 0; i < arr.length; i++ ) {
 }
 // Invert the array to determine value frequency...
 out = invert( arr );
-keys = objectKeys( out );
-for ( i = 0; i < keys.length; i++ ) {
+k = keys( out );
+for ( i = 0; i < k.length; i++ ) {
 	if ( out[ i ] ) {
 		out[ i ] = out[ i ].length;
 	} else {