minor correction of documentation for 'Grace' (#11322)

diff --git a/docs/axes/cartesian/linear.md b/docs/axes/cartesian/linear.md
index 695e9b69f852934a695dd3be45ba899734e2ec02..b85dcf6981b90573589f6f5cd50bb804b5bb4299 100644 (file)
--- a/docs/axes/cartesian/linear.md
+++ b/docs/axes/cartesian/linear.md
@@ -56,7 +56,7 @@ let options = {
 
 ## Grace
 
-If the value is string ending with `%`, its treat as percentage. If number, its treat as value.
+If the value is a string ending with `%`, it's treated as a percentage. If a number, it's treated as a value.
 The value is added to the maximum data value and subtracted from the minimum data. This extends the scale range as if the data values were that much greater.
 
 ```js chart-editor