Add more URL parse helper functions, update Readme file

`npm build` is deprecated it is now `npm run`

Add more url parser
- set/remove entry from URL
- get single entry from URL alt version
- check if url has key entry

ReadMe.md

@@ -100,19 +100,19 @@ Build with the following commands, the output will be stored in "build/js/output
 For full not minified version
 
 ```sh
-npm build utils-build
+npm run utils-build
 ```
 
 For minified build (but keeps the function names as is)
 
 ```sh
-npm build utils-min-build
+npm run utils-min-build
 ```
 
 Or build both at the same time
 
 ```sh
-npm build utils-build-all
+npm run utils-build-all
 ```
 
 ## Develop