What service or template can be used to store instructions for store managers?

There is a shop which has accumulated a lot of instructions how to process orders how to answer, where to look etc. Now it's all in vordovsky files, quite uncomfortable. I want to make a website where to post all those instructions. It is important to support the following:

1. Step by step instructions to action
2. The placement of photos, documents at each stage
3. The possibility of feedback below if it was easy to contact me and clarify (for example, sending a mail to mentioned what is a request)

Was thinking of making a template on wordpress, but maybe there is already a ready theme/some services for this, after all, the common case?
July 8th 19 at 16:20
1 answer
July 8th 19 at 16:22
Confluence - but he paid.

And so there is a little dance with a tambourine it is possible to set or Wordpress or Wiki to put the engine and make it (MediaWiki suppose)

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