A Typo of alertmanager config

[yabea]

What did you do? There is a typo about time_interval in the online documentation

What did you expect to see? Maybe should be time_interval_spec, I found that in docs, just not updated?

[justankiit]

I would like to work on this! /assign

[simonpasquier]

@kumarankit999 feel free to submit a PR :)

[justankiit]

Yep, Sure I will raise a PR Soon! Hey @yabea @simonpasquier , are you talking about to change every time_interval to time_interval_spec in the docs!!