替换 manual.md

doc/manual.md

+<script type="text/javascript" async src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-MML-AM_CHTML"> </script>
+
 # NiuTrans.Tensor张量计算库
 # NiuTrans.Tensor张量计算库
 
 
 ## NiuTrans.Tensor
 ## NiuTrans.Tensor