Update css-restrict-orientation-b33eff.md adding in bullet to Assumption list regarding scripts not being used to adjust CSS orientation lock

[ChrisLoiselle]

Added bullet to Assumption list , adding in the line "Scripts are not used to adjust the CSS orientation lock"

<< Describe the changes >>

Closes issue(s):

• closes #XXX (ADD ISSUE NUMBER HERE)

Need for Call for Review: << choose one of the following and remove the rest >> << check Process Document on Call for Review >> This can be merged with 1 approval << choose reason: editorial changes to website/test code, adding new contributor, other (explain). >> This will not require a Call for Review << choose reason(s): editorial changes (including to the applicability, expectation or examples section), changes to assumptions, background, accessibility support, change to website/test code (not rule), other (explain). >> This will require a 1 week Call for Review << small changes affecting a small number of test cases, if in doubt do not use this. >> This will require a 2 weeks Call for Review << new rule, or substantial changes affecting a large number of test cases, if in doubt, use this. >>

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