diff --git a/docs/.gitignore b/docs/.gitignore
index a303fff20..b71a83fb6 100644
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -1,2 +1,3 @@
 build/
 site/
+Manifest.toml
diff --git a/docs/Project.toml b/docs/Project.toml
index 3a52a5db2..ce9aa3290 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,5 +1,3 @@
 [deps]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-
-[compat]
-Documenter = "0.27"
+NNlib = "872c559c-99b0-510c-b3b7-b6c96a88d5cd"
diff --git a/docs/make.jl b/docs/make.jl
index a12937ca0..599aaf9dc 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -12,6 +12,7 @@ makedocs(modules = [NNlib],
             #   analytics = "UA-36890222-9",
               assets = ["assets/flux.css"],
               prettyurls = get(ENV, "CI", nothing) == "true"),
+              warnonly=[:missing_docs,]
         )
 
 deploydocs(repo = "github.com/FluxML/NNlib.jl.git",
diff --git a/src/upsample.jl b/src/upsample.jl
index babd613fb..5a60e8ec0 100644
--- a/src/upsample.jl
+++ b/src/upsample.jl
@@ -173,6 +173,16 @@ function upsample_nearest(x::AbstractArray{T,N}, scales::NTuple{S, <:Integer}) w
     out
 end
 
+"""
+    ∇upsample_nearest(Δ::AbstractArray{T,3}, scales::NTuple{S, <:Integer}) where T
+
+# Arguments
+- `Δ`: Incoming gradient array, backpropagated from downstream layers
+- `scales`: scales by which the image was upsampled in the first place
+
+# Outputs
+- `dx`: Downsampled version of `Δ`
+"""
 function ∇upsample_nearest(x::AbstractArray{T,N}, scales::NTuple{S, <:Integer}) where {T,N,S}
     outsize = ntuple(N) do d
         d > S && return size(x,d)