Adding deletion and update info

[sadick254]

The inclusion of how to delete and update are important to help the developer to accomplish CRUD operations.

[chrisvfritz]

@sadick254 Deleting and updating are just done the normal Firebase way, rather than anything specific to this library. See the example.

[sadick254]

I totally agree. Deleting and Updating are done the Firebase way. The main reason is to help someone who is just starting interacting with the js stack (Vuejs,Vuefire & Firebase), to at least get some ideas on how to compose his/her app.

[posva]

@sadick254 Thanks for the initiative. I'd like to update the example to fit coding style and match the example mentioned by @chrisvfritz but I cannot edit the file and add commits to the PR. Did you uncheck the Give access checkbox when creating the PR?

[sadick254]

@posva my bad i deleted my fork after making the PR i guess thats why you cant make edits.Bad thing i dont know how to reverse that. @chrisvfritz I saw the example but the reason why i didnt want to use that is because there is a small difference between the todo app example and the example already provided on the readme.md.