Normalize yaml code blocks in doc

[jreklund]

Q	A
Branch	master
Bug fix?	no
New feature?	no
BC breaks?	no
Deprecations?	no
Documented?	yes
Fixed tickets	#1069

• [x] Changed all yaml indentations to 4 spaces
• [x] Renamed all yml to yaml code blocks
• [x] Updated .editorconfig
• [x] Added grumphp.yml to code blocks starting with grumphp:
• [x] Removed grumphp.yml from some code blocks to reflect the rest of the doc
• [x] Fixed "tester" task documentation
• [x] Add missing : to parameters doc

One thing I'm not 100% certain about are my phpcsfixer2 into phpcsfixer rename. I think that was a typo so I corrected it.

[veewee]

Looks good! I've got one question about the editor config.

One thing I'm not 100% certain about are my phpcsfixer2 into phpcsfixer rename. I think that was a typo so I corrected it.

That is correct! Previously we had both phpcsfixer(1) and phpcsfixer2 tasks. Now that v1 is deprecated, we removed it and renamed it to phpcsfixer.

[veewee]

Thanks @jreklund . Looks good to me! Or can you think of anything else that needs to be done in thisPR?

[jreklund]

I'm finished on my end. Better to merge it so that other features don't end up with merge conflict for holding this one.

[veewee]

Thanks again! :)