Include instructions on the main page of the sample repository

[kitchenprinzessin3880]

Here are the instructions:

To register your samples with a new collection in the repository:

1. Log in via (AAF)
2. Send a request to create a sample collection [set hyperlink of the word 'request' to the creation form]
3. You will be notified via email after the collection is created
4. Select your collection and choose Upload Samples [set hyperlink the word 'collection' to https://sample-dev.data.auscope.org.au/organization/]

To register your samples with an existing collection in the repository:

1. Log in via (AAF)
2. Select your collection-of-interest [set hyperlink the word 'collection-of-interest' to https://sample-dev.data.auscope.org.au/organization/]
3. Click "" [add here the button name]

[...] - info only, should not be in the actual box