Added editting instructions

# Commenting instructions for ETSI members

1. Open the file you would like to comment

![](./media/editing_1.png)

2. Open in Web IDE

![](./media/editing_2.png)

3. Make all proposed changes. By clicking the icon with the looking class in the far up-right corner, you can open a preview of the file next to the Markdown version of it.

![](./media/editing_3.png)

4. Commit changes

    1. Select version control from the left panel

    1. Click the down arrow

    1. Create a new branch with descriptive name. The popup will appear in the up-middle.

![](./media/editing_4.png)

5. After committing changes to the branch, the dialog in the down right corner suggest you to create a new Merge Request. Thiss will take you back to the Gitlab page with the MR prepared.

![](./media/editing_5.png)

6. Finalize the MR by adding desriptive text that summarizes the proposed changes.

 No newline at end of file