fix doctests

Author: oxinabox

docs/src/api.md

@@ -4,9 +4,3 @@
 Modules = [ChainRulesTestUtils]
 Private = false
 ```
-
-
-## Global Configuration
-```@docs
-ChainRulesTestUtils.enable_tangent_transform!
-```

docs/src/index.md

@@ -59,7 +59,8 @@ Keep this in mind when testing discontinuous rules for functions like [ReLU](htt
 julia> using ChainRulesTestUtils;
 
 julia> test_frule(two2three, 3.33, -7.77);
-
+Test Summary:                            | Pass  Total
+test_frule: two2three on Float64,Float64 |    6      6
 
 ```
 
@@ -70,7 +71,8 @@ The call will test the `rrule` for function `f` at the point `x`, and similarly
 
 ```jldoctest ex
 julia> test_rrule(two2three, 3.33, -7.77);
-
+Test Summary:                            | Pass  Total
+test_rrule: two2three on Float64,Float64 |    9      9
 
 ```
 
@@ -97,11 +99,13 @@ with the `frule` and `rrule` defined with the help of `@scalar_rule` macro
 call.
 ```jldoctest ex
 julia> test_scalar(relu, 0.5);
-
+Test Summary:            | Pass  Total
+test_scalar: relu at 0.5 |   11     11
 
 
 julia> test_scalar(relu, -0.5);
-
+Test Summary:             | Pass  Total
+test_scalar: relu at -0.5 |   11     11
 
 ```