fixes #619

lib/pure/collections/sequtils.nim

@@ -302,6 +302,10 @@ template toSeq*(iter: expr): expr {.immediate.} =
   ##         result = true)
   ##   assert odd_numbers == @[1, 3, 5, 7, 9]
   ##
+  ## **Note**: Since this is an immediate macro, you cannot always invoke this
+  ## as ``x.toSeq``, depending on the ``x``.
+  ## See `this <manual.html#limitations-of-the-method-call-syntax>`_
+  ## for an explanation.
   var result {.gensym.}: seq[type(iter)] = @[]
   for x in iter: add(result, x)
   result

lib/pure/fenv.nim

@@ -8,7 +8,7 @@
 #
 
 ## Floating-point environment. Handling of floating-point rounding and
-## exceptions (overflow, zero-devide, etc.).
+## exceptions (overflow, division by zero, etc.).
 
 {.deadCodeElim:on.}
 

lib/system.nim

@@ -904,9 +904,8 @@ proc `of` *[T, S](x: T, y: S): bool {.magic: "Of", noSideEffect.}
   ## Checks if `x` has a type of `y`
   ##
   ## .. code-block:: Nim
-  ##   assert(EFloatingPoint of EBase)
-  ##   assert(EIO of ESystem)
-  ##   assert(EDivByZero of EBase)
+  ##   assert(FloatingPointError of Exception)
+  ##   assert(DivByZeroError of Exception)
 
 proc cmp*[T](x, y: T): int {.procvar.} =
   ## Generic compare proc. Returns a value < 0 iff x < y, a value > 0 iff x > y