Add @ operator

Add in the documentation the @ operator

1 files changed, 11 insertions, 0 deletions

diff --git a/HelpMe.md b/HelpMe.md
index df336a2..7b4903c 100644
--- a/HelpMe.md
+++ b/HelpMe.md
@@ -40,6 +40,7 @@ Thanks of several operations and option, you can tune a bit you rolling command.
 * r : Reroll
 * e : Explose
 * a : Reroll and add
+* @ : Backward Jump
 
 ### Keep
 
@@ -112,6 +113,16 @@ Rolling 3 dice with 10 faces starting at 0.
 
 Rolling 3 dice, values ars between -20 and -9.
 
+### Backward Jump
+
+This operator is dedicated to apply its next operator to the second to last result.
+For example:  
+
+> 8D10c[>=7]+@c[=10]
+
+c[=10] in this command is counting the number of 10 in the result of 8D10, if you remove the @, it will try to count the number of 10 in the result of c[>=7]. The result of c[>=7] is a scalar number (1 or 2 ... (max value 8)); it is not dice list.
+
+
 ## Arithmetic
 
 Rolisteam Dice Parser is able to compute primary arithmetic operation such as: +, -, /, * and it also manages those operator priority and it can also manage parenthesis.