Merge branch 'master' of https://github.com/Microsoft/pxt-microbit

docs/reference/basic/show-number.md

@@ -1,6 +1,6 @@
 # Show Number
 
-Show a number on the [LED screen](/device/screen), one digit at a time (scrolling from left to right)
+Show a number on the [LED screen](/device/screen). It will slide left if it has more than one digit.
 
 ~~~~sig
 basic.showNumber(2, 150)
@@ -8,18 +8,18 @@ basic.showNumber(2, 150)
 
 ### Parameters
 
-* value - a [Number](/reference/types/number)
-* (optional) interval (ms) - [Number](/reference/types/number); the time (in milliseconds) before scrolling by one LED; the larger the number, the slower the scroll
+* **value** is a [Number](/reference/types/number).
+* **interval (ms)** is an optional [Number](/reference/types/number). It means the number of milliseconds before sliding the **value** left by one LED each time. Bigger intervals make the sliding slower.
 
-### ~
+### Examples:
 
-To display the number 10:
+To show the number 10:
 
 ~~~~blocks
 basic.showNumber(10)
 ~~~~
 
-To display the number stored in the `x` variable:
+To show the number stored in the `x` variable:
 
 ~~~~blocks
 let x = 1
@@ -28,19 +28,19 @@ basic.showNumber(x)
 
 ### Example: count to 5
 
-This example uses a [for](/reference/loops/for) loop to show numbers ``1`` through ``5`` on the screen:
+This example uses a [for](/reference/loops/for) loop to show numbers ``0`` through ``5`` on the screen:
 
 ~~~~blocks
-for (let i = 0; i < 5; i++) {
-    basic.showNumber(i + 1)
+for (let i = 0; i < 6; i++) {
+    basic.showNumber(i)
     basic.pause(200)
 }
 ~~~~
 
 ### Other show functions
 
-* use [show string](/reference/basic/show-string) to show a string on the screen
-* use [show animation](/reference/basic/show-animation) to show a series of images on the screen
+* use [show string](/reference/basic/show-string) to show a [String](/reference/types/string) with letters on the screen
+* use [show animation](/reference/basic/show-animation) to show a group of pictures on the screen, one after another
 
 ### Lessons