Add hacking instructions in readme and add minor changes in contribution guide.

CONTRIBUTING.md

@@ -34,9 +34,10 @@ Here we go! 🤠 First, clone this repository:
 
 ```bash
 git clone https://github.com/Ionaru/easy-markdown-editor.git
+cd easy-markdown-editor
 ```
 
-Then install the EasyMDE for development environment with npm:
+Then install the EasyMDE with npm:
 
 ```bash
 npm install
@@ -44,6 +45,7 @@ npm install
 
 Yay! You are ready! 🍾
 
+
 ### ⤴️ Creating a pull request
 
 1. First, [create a fork of this project](https://github.com/Ionaru/easy-markdown-editor/fork), and copy the https URL (*clone or download* button) of your project (something like https://github.com/YOUR_USERNAME/easy-markdown-editor.git );
@@ -56,6 +58,6 @@ Yay! You are ready! 🍾
 6. push it to a dedicated branch `git push origin myMergeRequest`;
 7. got to the [main project page](https://github.com/Ionaru/easy-markdown-editor) and click on the button *Compare and pull request*, then fill the description.
 
-If you want to make other pull requests, go back to the development branch (`git checkout development`), update it (`git pull --rebase source development`), then follow the instructions above from step 3.
+If you want to make other pull requests, go back to the master branch (`git checkout master`), update it (`git pull --rebase source master`), then follow the instructions above from step 3.
 
 Thank you! 💜

README.md

@@ -417,6 +417,16 @@ Changes include:
 My intention is to continue development on this project, improving it and keeping it alive.
 
 
+## Hacking EasyMDE
+
+You may want to edit this library to adapt its behavior to your needs. This can be done in some quick steps:
+
+1. Follow the [prerequisites](./CONTRIBUTING.md#prerequisites) and [installation](./CONTRIBUTING.md#installation) instructions in the contribution guide;
+2. Do your changes;
+3. Run `gulp` command, which will generate files: `dist/easymde.min.css` and `dist/easymde.min.js`;
+4. Copy-paste those files to your code base, and you are done.
+
+
 ## Contributing
 
 Want to contribute to EasyMDE? Thank you! We have a [contribution guide](./CONTRIBUTING.md) just for you!