diff --git a/src/docs/foldl.md b/src/docs/foldl.md
index 6c21148..269b877 100644
--- a/src/docs/foldl.md
+++ b/src/docs/foldl.md
@@ -13,4 +13,11 @@ julia> foldl.(tuple, grouped(isodd, [0, 7, 3, 1, 5, 9, 4, 3, 0, 5]))
 Transducers.GroupByViewDict{Bool,Any,…} with 2 entries:
   false => ((0, 4), 0)
   true  => ((((((7, 3), 1), 5), 9), 3), 5)
+
+julia> using OnlineStats
+
+julia> foldl.(Ref(Mean()), grouped(isodd, [0, 7, 3, 1, 5, 9, 4, 3, 0, 5]))
+Transducers.GroupByViewDict{Bool,Mean{Float64,EqualWeight},…} with 2 entries:
+  false => Mean: n=3 | value=1.33333
+  true  => Mean: n=7 | value=4.71429
 ```
diff --git a/src/docs/reduce.md b/src/docs/reduce.md
index 7fd4b4a..4ac27b8 100644
--- a/src/docs/reduce.md
+++ b/src/docs/reduce.md
@@ -13,4 +13,11 @@ julia> reduce.(max, grouped(isodd, [0, 7, 3, 1, 5, 9, 4, 3, 0, 5]))
 Transducers.GroupByViewDict{Bool,Int64,…} with 2 entries:
   false => 4
   true  => 9
+
+julia> using OnlineStats
+
+julia> reduce.(Ref(Mean()), grouped(isodd, [0, 7, 3, 1, 5, 9, 4, 3, 0, 5]))
+Transducers.GroupByViewDict{Bool,Mean{Float64,EqualWeight},…} with 2 entries:
+  false => Mean: n=3 | value=1.33333
+  true  => Mean: n=7 | value=4.71429
 ```