update document

.gitignore

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+keep_local/

README.md

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 # IconFold
  A series of tools made for folders' icons. It's aimed to manage the icon used.
+
+ This toolkit is made **for Windows** platform.
+
+## Installation
+ Thers is no need of installation. Just store these things in some place.
+
+ There might be some EXE version. (That is, programs being packed into *.exe* files.)
+
+## Using
+ You should run in some terminal, like *cmd.exe* and *Power Shell*.
+> You are ought to run in the location of the programs' directory. Otherwise the *res_ico* would be located at somewhere else.
+> 
+> You may ignore this notice if you are really sure about what you are doing and if it's up to your expectation. 
+
+ Type "/?" as the only parameter to the program to see help message.
+
+### General Options
+
+| Option | Desc. |
+|--------|-------|
+| /?     | Show help message |
+| /S     | Do with search. i.e. recursive. |
+| /AICO  | Affect all icons  |
+
+### File Desc.
+
+#### Main programs
+
+| Program | Desc. |
+|---------|-------|
+| apply_ico | Apply prepared resources the specific folder, or even the subfolders. |
+| clean_ico | Clean the *.ini* and the corresponding, or all instead, *.ico* of some folders given.  |
+| enable_ico | Enable the configuration existed. |
+| disable_ico | Disable the configration existed. |
+
+#### Assistant programs
+
+| Program | Desc. |
+|---------|-------|
+| extract_command | Extract resouce from an already customized folder. |
+
+#### res_ico
+
+Files prepared in *res_ico* and *template_of_res_ico* are **hidden** by default. This is because the files are extracted from a folder customized by the tool of *icofx*.
+
+To show them, change the settings of explorer.
+
+To list the items, execute this command in the cmd (example):
+``` shell
+dir /A:A res_ico
+```
+
+To del the items, execute this command in the cmd (example):
+``` shell
+del /F /A:A res_ico\*
+```
+
+## License
+
+**MIT**

src/template_of_res_ico/desktop.ini

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+[.ShellClassInfo]
+IconResource=IcoFX_Customization_{BD6C4569-4997-4069-B5D5-4D94BB1213D0}.ico,0
+IconFile=IcoFX_Customization_{BD6C4569-4997-4069-B5D5-4D94BB1213D0}.ico
+IconIndex=0