nit: fix code comment in binarytodecimal.go and in decimaltobinary.go (#733)

Author: alokmenghrajani

README.md

@@ -229,8 +229,8 @@ Read our [Contribution Guidelines](CONTRIBUTING.md) before you contribute.
 
 1. [`Base64Decode`](./conversion/base64.go#L57):  Base64Decode decodes the received input base64 string into a byte slice. The implementation follows the RFC4648 standard, which is documented at https://datatracker.ietf.org/doc/html/rfc4648#section-4
 2. [`Base64Encode`](./conversion/base64.go#L19):  Base64Encode encodes the received input bytes slice into a base64 string. The implementation follows the RFC4648 standard, which is documented at https://datatracker.ietf.org/doc/html/rfc4648#section-4
-3. [`BinaryToDecimal`](./conversion/binarytodecimal.go#L25):  BinaryToDecimal() function that will take Binary number as string, and return it's Decimal equivalent as integer.
-4. [`DecimalToBinary`](./conversion/decimaltobinary.go#L32):  DecimalToBinary() function that will take Decimal number as int, and return it's Binary equivalent as string.
+3. [`BinaryToDecimal`](./conversion/binarytodecimal.go#L25):  BinaryToDecimal() function that will take Binary number as string, and return its Decimal equivalent as integer.
+4. [`DecimalToBinary`](./conversion/decimaltobinary.go#L32):  DecimalToBinary() function that will take Decimal number as int, and return its Binary equivalent as string.
 5. [`FuzzBase64Encode`](./conversion/base64_test.go#L113): No description provided.
 6. [`HEXToRGB`](./conversion/rgbhex.go#L10):  HEXToRGB splits an RGB input (e.g. a color in hex format; 0x<color-code>) into the individual components: red, green and blue
 7. [`IntToRoman`](./conversion/inttoroman.go#L17):  IntToRoman converts an integer value to a roman numeral string. An error is returned if the integer is not between 1 and 3999.

conversion/binarytodecimal.go

@@ -21,7 +21,7 @@ import (
 var isValid = regexp.MustCompile("^[0-1]{1,}$").MatchString
 
 // BinaryToDecimal() function that will take Binary number as string,
-// and return it's Decimal equivalent as integer.
+// and return its Decimal equivalent as an integer.
 func BinaryToDecimal(binary string) (int, error) {
 	if !isValid(binary) {
 		return -1, errors.New("not a valid binary string")

conversion/decimaltobinary.go

@@ -28,7 +28,7 @@ func Reverse(str string) string {
 }
 
 // DecimalToBinary() function that will take Decimal number as int,
-// and return it's Binary equivalent as string.
+// and return its Binary equivalent as a string.
 func DecimalToBinary(num int) (string, error) {
 	if num < 0 {
 		return "", errors.New("integer must have +ve value")