broken link to API user guide

[holovincent]

Could you please fix the following link error? Thanks. OrbbecSDK C++ API user guide：Orbbec_SDK_C++_API_user_guide-v1.0.pdf

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Log Output
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System Environment:

• OS: Name and version (e.g., Windows 10, Ubuntu 20.04).
• Architecture: x86_64, armv7, etc.
• Visual Studio/GCC：Version A.B.C

Tool/SDK Version:

• SDK: Version A.B.C
• OrbbecViewer：: Version A.B.C

Device Information:

• Model: Device model name.
• Firmware Version: Firmware revision number.

Additional context
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[hzcyf]

Thanks for your feedback,. This issue will be fixed in the next release.

[hzcyf]

The issue has been resolved in the commit 0c7149