Documentation: Improve instructions

[2320sharon]

After a lot of user testing we figured out where users get confused.

Tasks

Tide Correction

• Update the tide correction instructions in the notebook to tell the user to load a session with extracted shoreline first
• Update the tide correction instructions that the new tidally corrected files will be saved to their session
• Update the tide correction instructions that it will overwrite any existing tidally corrected files
• Update the tide correction instructions to tell users its takes a few minutes for the tide prediction step to finish

General Instructions

• Tell users to NEVER rename their sessions or ROIs after they've been made
• Update you actually safely can rename sessions but not the name of the ROIs in the /data folder or within your session

Ideas

• Have an indicator that shows when ROIs with downloaded data or extracted shorelines have been loaded in

@dbuscombe-usgs if you think of other useful instructions write them here