Update README.md

added instructions for SM208 range setting

README.md

@@ -26,7 +26,7 @@
     * A spot meter must be used for display measurement accuracy:
         * With Calman (or equivalent) using included Calman workflow for nits measurement
         * [Click here for Handheld SM208 screen luminance meter via Amazon](https://www.amazon.com/gp/product/B00H050VEI/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1)**<br/>
-                **Click RANGE button once on SM208 to get into the right range for the measurements**
+                **Click RANGE button once on SM208 to set correct range for the measurements**
 
 * **<ins>SDR Repository Files with 10% Window Size Gray Chips<ins>**
     * **Full-Range PNG 16bit** (16bit Black=0; Peak White=65535)