Documentation Required: Migrate one legacy library

[jswope00]

A test case exists in the ULMO Testing doc that has no documentation. Therefore, documentation is required. Here is the ULMO Test case:

Test Title:
Migrate one legacy library

Notes:
Legacy library is successfully migrated to the new libraries experience with all content preserved

Description:
"1. Access the library migration tool
2. Select a single legacy library to migrate
3. Start migration process
4. Wait for completion"

[sarina]

@kdmccormick do we have existing documentation on legacy library migration that I could bring into the docs site?

[sarina]

@kdmccormick @sdaitzman @jmakowski1123 - do we have existing documentation on legacy library migration that I could bring into the docs site?