* add paddle new save load doc

* move static save apis & polish multiple details

* add api mapping

* move apis place

* fix example code error

* polish model save load guide

* polish example code

* fix details example error

* polish guide doc

* change title format

* remove history reason

* remove other history reason

* add enable_static for old save/load

* add enable_static for old api

* Add English doc of debugging

* Add English doc of error_handling

As the title

We added basic English usage guide. In addition, I thought some Chinese sentences are not good so I modified them.

TODO: Yamei suggested to split this file into basic usage and architecture. I will do it in next PRs

As the title.

当前只是最基本的文档，我正在添加：

支持和不支持的语法情况
高级debug功能使用方法文档
本文档的架构也需要添加画图更加直观
对应英文文档

LGTM

As the title.

update inference library 1.8.3

* add the doc of automatic mixed precision.

update windows infer lib to 1.8.2

As the title

update inference library to 1.8.1

LGTM

* update doc of memory optimize

* follow comments, test=develop

* modify the doc, test=develop

* Update custom_op to support release/1.8
* Make custom_op.md fit release/1.8

update inference library to 1.8.0

* add device_switching doc, test=develop

updata windows_cpp_inference to 1.7.2