[doc] fix: repair broken Ascend tutorial links and shell filename

[chengminhua]

What does this PR do?

Fix broken Ascend documentation links after the quickstart path migration, and clean up related invalid example links / a shell script filename that contained an invisible LRM character.

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[gemini-code-assist]

Code Review

This pull request updates several documentation links in the Ascend tutorial and model support files to point to the correct, updated paths and removes invalid characters from the URLs. I have no feedback to provide as there are no review comments.

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