Update docs/stoploss.md

Co-authored-by: Matthias <xmatthias@outlook.com>

docs/stoploss.md

@@ -87,7 +87,7 @@ For example, simplified math:
 * the stop loss would get triggered once the asset drops below 90$
 * assuming the asset now increases to 102$
 * the stop loss will now be -10% of 102$ = 91.8$
-* now the asset drops in value to 101$, the stop loss will still be 91.8$ and would trigger at 91,8$.
+* now the asset drops in value to 101$, the stop loss will still be 91.8$ and would trigger at 91.8$.
 
 In summary: The stoploss will be adjusted to be always be -10% of the highest observed price.