Update 'convertToText' ref page (#2002)

* Update 'convertToText' ref page

* say any type

docs/reference/text.md

@@ -0,0 +1,18 @@
+# Text
+
+Functions to combine, split, search, and convert text strings.
+
+```cards
+"".charAt(0);
+"".compare("");
+"".substr(0, 0);
+parseFloat("");
+parseInt("");
+convertToText(0);
+```
+
+## See also
+
+[char at](/reference/text/char-at), [compare](/reference/text/compare),
+[substr](/reference/text/substr), [parse int](/reference/text/parse-int), 
+[parse float](/reference/text/parse-float), [convert to text](/reference/text/convert-text)

docs/reference/text/convert-to-text.md

@@ -1,7 +1,34 @@
 # convert to text
 
-Converts a value into a text representation.
+Change the value of any [type](/types) into a text [string](/types/string).
 
 ```sig
 convertToText(123)
-```
+```
+
+## Parameters
+
+* **value**: a value of some [type](/types) to convert to a [string](/types/string).
+
+## Returns
+
+* a [string](/types/string) that is a text representation of **value**.
+
+## Example #example
+
+Convert a boolean and a number value into strings and join them in a sentence.
+
+```blocks
+let myBoolean = false
+let myNumber = 0
+
+myBoolean = true
+myNumber = 123
+
+let myString = "It is " + convertToText(myBoolean) + " that " + convertToText(myNumber) + " is now a string!"
+```
+
+## Sea also #seealso
+
+[parse int](/reference/text/parse-int), 
+[parse float](/reference/text/parse-float)