Wiki improve: Observable.fromArray()

[worstkiller]

Hey guys just a little suggestion over the use of
Observable.fromArray()
in wiki pages,
seems to have used the
Observable.fromIterable(list); instead of Observable.fromArray(array);
Here is link to page
https://github.com/ReactiveX/RxJava/wiki/Creating-Observables#fromarray
Please change if applicable thanks.

[akarnokd]

Hi, you can post a PR against https://github.com/ReactiveX/RxJava/blob/2.x/docs/Creating-Observables.md

[lorenzpahl]

I would like to add that there are more issues on that wiki page that could be resolved along with the mentioned problem:

• Missing parentheses in the second just example: error.printStackTrace instead of error.printStackTrace().
• fromFuture, create: Executors.newSingleThreadedScheduledExecutor() instead of Executors.newSingleThreadScheduledExecutor().
• range: typo erro. Char should be Character.
• error: variable error is defined twice.

[worstkiller]

hey @akarnokd i just opened a PR with included suggestions from @lorenzpahl also.
#6436
Please merge them.
Thanks 😃