리드미 수정

readme-en.md

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 openNAMU is a Python-based wiki engine. You can use openNAMU by installing Python and its dependency modules, and you can modify the code yourself to create more specialized wikis.
 
- * [(README for Korean)](./readme-ko.md)
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 ### Index
  * [Getting Started](#getting-started)
  * [Clone](#clone)