docs: flesh out Range class docs, fix grammar, add smarty plugin, and improve CLI description

doc/site/core/range.markdown

@@ -1,7 +1,8 @@
 ^title Range Class
 ^category core
 
-**TODO**
+A range defines a bounded range of values from a starting point to a possibly
+exclusive endpoint. [Here](../range.html) is a friendly introduction.
 
 Extends [Sequence](sequence.html).
 
@@ -9,24 +10,49 @@ Extends [Sequence](sequence.html).
 
 ### **from**
 
-**TODO**
+The starting point of the range. A range may be backwards, so this can be
+greater than [to].
+
+    :::wren
+    (3..5).min // 3.
+    (4..2).min // 4.
 
 ### **to**
 
-**TODO**
+The endpoint of the range. If the range is inclusive, this value is included,
+otherwise it is not.
+
+    :::wren
+    (3..5).min // 5.
+    (4..2).min // 2.
 
 ### **min**
 
-**TODO**
+The minimum bound of the range. Returns either `from`, or `to`, whichever is
+lower.
+
+    :::wren
+    (3..5).min // 3.
+    (4..2).min // 2.
 
 ### **max**
 
-**TODO**
+The maximum bound of the range. Returns either `from`, or `to`, whichever is
+greater.
+
+    :::wren
+    (3..5).min // 5.
+    (4..2).min // 4.
 
 ### **isInclusive**
 
-**TODO**
+Whether or not the range includes `to`. (`from` is always included.)
+
+    :::wren
+    (3..5).isInclusive   // true.
+    (3...5).isInclusive  // false.
 
 ### **iterate**(iterator), **iteratorValue**(iterator)
 
-**TODO**
+Iterates over the range. Starts at `from` and increments by one towards `to`
+until the endpoint is reached.