Update intro.md

Author: nseidle

docs/intro.md

@@ -47,7 +47,7 @@ Are you using [Android](https://docs.sparkfun.com/SparkFun_RTK_Firmware/intro/#a
 
 9. Now put the device outside with a clear view of the sky. GNSS doesn’t work indoors or near windows. Within about 30 seconds you should see 10 or more satellites in view (SIV). More SIV is better. We regularly see 30 or more SIV. The horizontal positional accuracy (HPA) will start at around 10 meters and begin to decrease. The lower the HPA the more accurate your position. If you wait a few moments, this will drop dramatically to around 0.3 meters (300mm = 1ft) or better. 
 
-Now you use your RTK device to begin measuring points. If you need extreme accuracy (down to 10mm) continue reading the [RTK Crash Course](https://docs.sparkfun.com/SparkFun_RTK_Firmware/intro/#rtk-crash-course).
+You can now use your RTK device to measure points with very good (sub-meter) accuracy. If you need extreme accuracy (down to 10mm) continue reading the [RTK Crash Course](https://docs.sparkfun.com/SparkFun_RTK_Firmware/intro/#rtk-crash-course).
 
 ## iOS
 
@@ -98,7 +98,7 @@ The software options for Apple iOS are much more limited because Apple products
 
 12. Now put the device outside with a clear view of the sky. GNSS doesn’t work indoors or near windows. Within about 30 seconds you should see 10 or more satellites in view (SIV). More SIV is better. We regularly see 30 or more SIV. The horizontal positional accuracy (HPA) will start at around 10 meters and begin to decrease. The lower the HPA the more accurate your position. If you wait a few moments, this will drop dramatically to around 0.3 meters (300mm = 1ft) or better. 
 
-Now you use your RTK device to begin measuring points. If you need extreme accuracy (down to 10mm) continue reading the [RTK Crash Course](https://docs.sparkfun.com/SparkFun_RTK_Firmware/intro/#rtk-crash-course).
+You can now use your RTK device to measure points with very good (sub-meter) accuracy. If you need extreme accuracy (down to 10mm) continue reading the [RTK Crash Course](https://docs.sparkfun.com/SparkFun_RTK_Firmware/intro/#rtk-crash-course).
 
 ## RTK Crash Course
 
@@ -163,7 +163,7 @@ RTK Fix will be maintained as long as there is a clear view of the sky and corre
 
 * High-precision GNSS works best with a clear view of the sky; it does not work indoors or near a window. GNSS performance is generally *not* affected by clouds or storms. Trees and buildings *can* degrade performance but usually only in very thick canopies or very near tall building walls. GNSS reception is very possible in dense urban centers with skyscrapers but high-precision RTK may be impossible.
 
-* The location reported by the RTK device is the location of the antenna element; it's *not* the location of the pointy end of the stick. Lat and Long are fairly easy to obtain but if you're capturing altitude be sure to do additional reading on ARPs (antenna reference points) and how to account for the antenna height.
+* The location reported by the RTK device is the location of the antenna element; it's *not* the location of the pointy end of the stick. Lat and Long are fairly easy to obtain but if you're capturing altitude be sure to do additional reading on ARPs (antenna reference points) and how to account for the antenna height in your data collection software.
 
 * An internet connection is required for most types of RTK. RTCM corrections can be transmitted over other types of connections (such as serial telemetry radios). See [Correction Transport](correction_transport.md) for more details.