Feature request: Change title of operation icons

[severin]

Instead of hard-coding add tree node

vue-tree-list/src/VueTreeList.vue

Line 61 in 66bc19b

 title="add tree node" 

it would be nice if we could customize the text of the title.
Same for the other titles.

[Pedro Araujo]

How can I Change the titles if I make and npm to install in a vue project?
Thanks in advance..

Update:
I did it just put<span title="Your text">your icon</span>it works.