Add more information to release process docs

Build.fs

@@ -80,7 +80,6 @@ Target.create "Push" (fun _ ->
     let args = $"push %s{nupkgPath} --url https://www.nuget.org"
     run "dotnet" $"paket push %s{nupkgPath} --url https://www.nuget.org" "."
 
-    let remoteGit = "upstream"
     let commitMsg = sprintf "Bumping version to %O" release.NugetVersion
     let tagName = string release.NugetVersion
 
@@ -90,10 +89,10 @@ Target.create "Push" (fun _ ->
 
     Git.Staging.stageAll ""
     Git.Commit.exec "" commitMsg
-    Git.Branches.pushBranch "" remoteGit "master"
+    Git.Branches.pushBranch "" "origin" "master"
 
     Git.Branches.tag "" tagName
-    Git.Branches.pushTag "" remoteGit tagName
+    Git.Branches.pushTag "" "origin" tagName
 )
 
 Target.create "Release" ignore

CONTRIBUTING.md

@@ -27,6 +27,10 @@ Pre-requisites:
 
 Steps:
 
-1. Add an entry to `RELEASE_NOTES.md` with the new version, date and release notes
-1. Set the `NUGET_KEY` env var
+1. Check out the repo at latest `master` commit with the official SAFE-Template repo as the `origin` remote.
+1. Ensure you have no other local changes.
+1. Add an entry (without committing) to `RELEASE_NOTES.md` with the new version, date and release notes.
+1. Set the `NUGET_KEY` env var.
 1. Run `dotnet run --project Build.fsproj -- release`
+
+This will release the nuget package and commit and push the release notes to master.