Update README.md

Author: ratajs

README.md

@@ -1,2 +1,27 @@
 # Advanced-Division-dart
 Divide two numbers using recurring decimals
+
+You can use the `advdiv` function with this syntax:
+
+<code>
+advdiv(double n1, double, n2, int r, String rstr = "[", String rstr2 = "]")
+</code>
+
+This function relies on the `times10` function, which is eke in this file.
+
+* n1 – first number
+* n2 – second number
+* r – recurring decimals of the first number (default 0)
+* rstr1 – string to be inserted before recursive decimals (default "[")
+* rstr2 – string to be inserted after recursive decimals (default "[")
+
+You can also use it as a console application (download it from the “Releases” section), examples:
+
+<pre>$ ./advdiv 1 6
+0.1[6]</pre>
+
+<pre>$ ./advdiv 1 7
+0.[142857]</pre>
+
+<pre>$ ./advdiv 123.1 7.54 24
+16.[329475122578570854432923398440639819950164777750984647536371674302708785467406157061]</pre>