[trivial] Fix typo in peertablemodel.cpp

src/qt/peertablemodel.cpp

@@ -85,7 +85,7 @@ public:
         }
 
         if (sortColumn >= 0)
-            // sort cacheNodeStats (use stable sort to prevent rows jumping around unneceesarily)
+            // sort cacheNodeStats (use stable sort to prevent rows jumping around unnecessarily)
             qStableSort(cachedNodeStats.begin(), cachedNodeStats.end(), NodeLessThan(sortColumn, sortOrder));
 
         // build index map