PR feedback: uint->describe const-expr

docs/language/conventions.md

@@ -12,7 +12,6 @@ in the Zed documentation include several type classes as follows:
 * _any_ - any Zed data type
 * _float_ - any floating point Zed type
 * _int_ - any signed or unsigned Zed integer type
-* _uint_ - any unsigned Zed integer type
 * _number_ - either float or int
 * _record_ - any [record](../formats/zson.md#251-record-type) type
 

docs/language/operators/top.md

@@ -5,15 +5,17 @@
 ### Synopsis
 
 ```
-top <uint> <expr> [, <expr> ...]
+top <const-expr> <expr> [, <expr> ...]
 ```
 ### Description
 
 The `top` operator returns the top N values from a sequence sorted in descending
-order by one or more expressions. `top` is functionally similar to
-[`sort`](sort.md) but is less resource intensive because only the top
-N values are stored in memory (i.e., values less than the minimum are
-discarded).
+order by one or more expressions. N is given by `<const-expr>`, a compile-time
+constant expression that evaluates to a positive integer.
+
+`top` is functionally similar to [`sort`](sort.md) but is less resource
+intensive because only the top N values are stored in memory (i.e., values
+less than the minimum are discarded).
 
 ### Examples