Minor modif to doc: advice for value of ndte

[JFLemieux73]

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• Short (1 sentence) summary of your PR:
  Advice in doc to increase nb of subcycles for high resolution applications
• Developer(s):
  @JFLemieux73
• Suggest PR reviewers from list in the column to the right.
  @eclare108213
• Please copy the PR test results link or provide a summary of testing completed below.
  N.A.
• How much do the PR code changes differ from the unmodified code?
  • bit for bit
  • different at roundoff level
  • more substantial
• Does this PR create or have dependencies on Icepack or any other models?
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  • No
• Does this PR add any new test cases?
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• Is the documentation being updated? ("Documentation" includes information on the wiki or in the .rst files from doc/source/, which are used to create the online technical docs at https://readthedocs.org/projects/cice-consortium-cice/. A test build of the technical docs will be performed as part of the PR testing.)
  • Yes
  • No, does the documentation need to be updated at a later time?
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• Please provide any additional information or relevant details below:
  @eclare108213 I have removed a sentence...please verify that this is ok. There might be a typo that I have not corrected yet. Look at "the elastic parameter E is also limited by stability" in section 3.1.3.3. Shouldn't it be Eo instead?

[eclare108213]

This is fine. E and Eo are distinguished in section 2.5.3.2, and using E is fine in section 3.1.3.3 in my opinion.