This series of patches translates all documents in the Doc/riscv directory.

v1->v2:

Modify the cover letter: remove some content from the tail;

v2->v3

remove features.rst
todos ----> 待办事项

v3->v4

Fixed some sick sentences.

Yanteng Si(4):
docs/zh_CN:add riscv boot-image-header.rst translation
docs/zh_CN: add riscv patch-acceptance.rst translation
docs/zh_CN: add riscv pmu.rst translation
docs/zh_CN: add riscv index.rst translation

Signed-off-by: Yanteng Si <redacted>
---
dcumentation/translations/zh_CN/riscv/boot-image-header.rst |  67
++++++++++++++++++++++++++++++++++++++++
 Documentation/translations/zh_CN/riscv/index.rst             |  29
++++++++++++++++++
 Documentation/translations/zh_CN/riscv/patch-acceptance.rst  |  32
++++++++++++++++++++
 Documentation/translations/zh_CN/riscv/pmu.rst               | 233
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 361 insertions(+)