Fix grammr;

api/lovr/data/Blob/getName.lua

@@ -1,5 +1,5 @@
 return {
-  summary = 'Get the label the Blob.',
+  summary = 'Get the label of the Blob.',
   description = [[
     Returns the filename the Blob was loaded from, or the custom name given to it when it was
     created.  This label is also used in error messages.