add main readme and fix scripts

README.md

@@ -1,3 +1,45 @@
 # Virtools Translation
 
-This is a part of plan...
+Provide I18N for an abandoned ancient game-making software - Virtools.
+
+This repository consist of these parts:
+
+* NlpCodec: The codec about encoding and decoding NLP translation file used by Virtools.
+* NlpParser: An ANTLR written parser which can recognised decoded NLP text file syntax and convert it to a neasted JSON format because JSON format is more common.
+* NlpProc
+  - Convert the JSON between the nested JSON output by NlpParser and un-nested JSON (flat JSON / plain JSON) to let it more acceptable for the most of common I18N software.
+  - Output NLP text file when compiling translation.
+
+## How to Translate
+
+I take `zh-cn` (Chinese) as a example. Navigate to NlpTr folder first. and you will find following files.
+
+* `VT25.zh-cn.json`
+* `VT35.zh-cn.json`
+* `VT40.zh-cn.json`
+* `VT50.zh-cn.json`
+
+The only things you need to do is translate these JSON files.
+
+## How to Add Language
+
+Contact the owner of repository, or follow the manual `NlpTr/README.md` when owner went off.
+
+## How the Files Generated in NlpTr
+
+This section is not suit for beginner.
+
+0. Run `./Scripts/compile_codec.sh` to compile NlpCodec
+0. Run `./Scripts/compile_parser.sh` to compile NlpParser
+0. Run `./Scripts/generate_source.sh` to generate the files located in NlpTr.
+
+## How We Generate NLP Files when Publishing
+
+This section is not suit for beginner.
+
+0. Run `./Scripts/compile_codec.sh` to compile NlpCodec. Skip if you have compiled.
+0. Run `./Scripts/compile_tr.sh`
+
+## Can I Use This on Windows
+
+Use MSYS2.

Scripts/compile_parser.sh

@@ -1,3 +1,4 @@
 cd NlpParser
 antlr4 Nlp.g4
 javac Nlp*.java
+cd ..