[PF-26] - Readme update

- update README.md and CONTRIBUTING.md

Author: mazarijuraj

CONTRIBUTING.md

@@ -1,11 +1,11 @@
 # How to contribute to Petriflow.js
 
-Petriflow.js is a Javascript library written in Typescript of Petriflow objects. The library is for those who want to integrate Petriflow 
+Petriflow.js is a JavaScript library written in Typescript of Petriflow objects. The library is for those who want to integrate Petriflow 
 processes in their applications.
 
 The library is updated together with the Petriflow specification.
 
-The library also contains functions to parse Petriflow source code from XML files to Javascript Objects and to export Javascript Objects to Petriflow source code.
+The library also contains functions to parse Petriflow source code from XML files to JavaScript Objects and to export JavaScript Objects to Petriflow source code.
 
 ## Ways you can contribute
 
@@ -26,7 +26,7 @@ If you've found a bug in the Petriflow objects or in utility functions, let us k
     * What you did (ideally with a code sample)
     * What you expected to happen
     * What actually happened, including any error messages or program output.
-    * Include the version of the library, Javascript engine (or browser) with its version and OS that you used.
+    * Include the version of the library, JavaScript engine (or browser) with its version and OS that you used.
 
 ### Fixing Bugs
 

README.md

@@ -10,11 +10,11 @@
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=netgrif_petriflow.js&metric=coverage)](https://sonarcloud.io/dashboard?id=netgrif_petriflow.js)
 [![Known Vulnerabilities](https://snyk.io/test/github/netgrif/petriflow.js/badge.svg)](https://snyk.io/test/github/netgrif/petriflow.js)
 
-> Petriflow in Javascript world
+> Petriflow in JavaScript world
 
-Petriflow.js is a Javascript library of Petriflow objects, written in Typescript. The library is for those who want to integrate Petriflow
+Petriflow.js is a JavaScript library of Petriflow objects, written in TypeScript. The library is for those who want to integrate Petriflow
 processes into their applications. The library is updated together with the Petriflow specification to ensure up-to-date compatibility.
-The library also contains functions to parse Petriflow source code from XML files to Javascript objects and to export Javascript Objects to Petriflow source code.
+The library also contains functions to parse Petriflow source code from XML files to JavaScript objects and to export JavaScript Objects to Petriflow source code.
 
 Full specification of Petriflow low-code language can be found at [Petriflow.com](https://petriflow.com) 
 
@@ -46,11 +46,11 @@ For applications supporting ES6+ modules you can use `import` statement, i.e.:
 import {PetriNet, ImportService} from "@netgrif/petriflow";
 ```
 
-The library is also published with type declaration and so your Typescript project will automatically recognize all types and enumerations.
+The library is also published with type declaration and so your TypeScript project will automatically recognize all types and enumerations.
 
 ### Petriflow model
 
-The library contains every object, constant, and structure to fully interpret Petriflow source code files in Javascript.
+The library contains every object, constant, and structure to fully interpret Petriflow source code files in JavaScript.
 The root object is a [PetriNet](https://github.com/netgrif/petriflow.js/blob/master/src/lib/model/petri-net.ts) which contains all information from the Petriflow process. Every object in the library has
 `T.clone() => T` method to make a deep copy of the object.