docs: use correct version number

docs/column-functionalities/Sorting.md

@@ -135,7 +135,7 @@ queryFieldNameGetterFn: (dataContext) => {
 ```
 
 ### Pre-Parse Date Columns for better perf
-##### requires v5.8.0 and higher
+##### requires v8.8.0 and higher
 
 Sorting very large dataset with dates can be extremely slow when dates formated date strings, the reason is because these strings need to first be parsed and converted to real JS Dates before the Sorting process can actually happen (i.e. US Date Format). However parsing a large dataset can be slow **and** to make it worst, a Sort will revisit the same items over and over which mean that the same date strings will have to be reparsed over and over (for example while trying to Sort a dataset of 100 items, I saw some items being revisit 10 times and I can only imagine that it is exponentially worst with a large dataset).