docs: fix string interpolation and update comments

lib/node_modules/@stdlib/number/int64/ctor/docs/types/test.ts

@@ -39,7 +39,7 @@ import Int64 = require( './index' );
 	x.toString(); // $ExpectType string
 }
 
-// The function returns an instance having a `toJSON` method to serialize an instance as a JSON object....
+// The function returns an instance having a `toJSON` method to serialize an instance as a JSON object...
 {
 	const x = new Int64( 5 ); // $ExpectType Int64
 	x.toJSON(); // $ExpectType SerializedInt64

lib/node_modules/@stdlib/number/uint64/base/number2words/lib/main.js

@@ -29,7 +29,7 @@ var assign = require( './assign.js' );
 * Splits a number into the high and low 32-bit words of a 64-bit unsigned integer.
 *
 * @param {NonNegativeInteger} value - integer value in the range [0, 2^53-1]
-* @returns {Array<uinteger32>} high and low words as 32-bit unsigned integers
+* @returns {Array<integer>} high and low words as 32-bit unsigned integers
 *
 * @example
 * var out = number2words( 1234 );

lib/node_modules/@stdlib/stats/base/dists/tukey-lambda/mode/README.md

@@ -99,7 +99,7 @@ var opts = {
 };
 var lambda = uniform( 10, 0.0, 20.0, opts );
 
-logEachMap( 'λ: %lf, mode(X;λ): %lf', lambda, mode );
+logEachMap( 'λ: %0.4f, mode(X;λ): %0.4f', lambda, mode );
 ```
 
 </section>

lib/node_modules/@stdlib/stats/base/dists/tukey-lambda/mode/examples/index.js

@@ -27,4 +27,4 @@ var opts = {
 };
 var lambda = uniform( 10, 0.0, 20.0, opts );
 
-logEachMap( 'λ: %lf, mode(X;λ): %lf', lambda, mode );
+logEachMap( 'λ: %0.4f, mode(X;λ): %0.4f', lambda, mode );