Update README.md

Author: YujiSODE

README.md

@@ -14,17 +14,21 @@ ______
 - `X1` to `Xn`: optional lists of numerical values
 
 **Tcl**  
-1\) `::randFreq::getFreq values;`  
-It returns estimated frequencies from given data set.  
-
+`::randFreq::getFreq values;`  
+It returns estimated frequencies from given data set.
 - `$values`: a list of numerical lists e.g., `{{v11 v12 ... v1n} ... {vM1 ... vMm}}`
 
-2\) `::randFreq::outputFreq values ?joinChar?;`  
-It outputs estimated frequencies as utf-8 encoded text in the current directory.  
-
+`::randFreq::outputFreq values ?joinChar?;`  
+It outputs estimated frequencies as utf-8 encoded text in the current directory.
 - `$values`: a list of numerical lists e.g., `{{v11 v12 ... v1n} ... {vM1 ... vMm}}`
 - `$joinChar`: a join character; tab character is default value
 
+`::randFreq::loadFile filePath char ?encoding?;`  
+It reads a given file and returns a list of numerical list.
+- `$filePath`: filePath of a given file
+- `$char`: a character used in order to split loaded data
+- `$encoding`: an optional encoding of given file
+
 ## 2. Script
 It requires Tcl/Tk 8.6+.
 - `randFreq.tcl`