Add Naming Of The Vercel Config File as a vercel til

Author: jbranchaud

README.md

@@ -9,7 +9,7 @@ and pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://tinyletter.com/jbranchaud).
 
-_958 TILs and counting..._
+_959 TILs and counting..._
 
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@@ -938,6 +938,7 @@ _958 TILs and counting..._
 ### Vercel
 
 - [Add Web Server Layer Redirects](vercel/add-web-server-layer-redirects.md)
+- [Naming Of The Vercel Config File](vercel/naming-of-the-vercel-config-file.md)
 
 ### Vim
 

vercel/naming-of-the-vercel-config-file.md

@@ -0,0 +1,17 @@
+# Naming Of The Vercel Config File
+
+[Vercel](https://vercel.com/), the company/service, used to be called Now. With
+any renaming comes some consistency challenges, even at the level of software.
+
+The naming of the file for configuring your project used to be `now.json`. It
+is _now_ `vercel.json`.
+
+For [backwards compatibility
+reasons](https://vercel.com/docs/platform/frequently-asked-questions#conflicting-configuration-files),
+you can still use either. You cannot and should not have both though.
+
+If you're working with an existing project that uses `now.json`. It is fine to
+continue with that naming. It may eliminate some future confusion if you are to
+rename it to `vercel.json`. If you're starting a new project, I'd recommend
+using `vercel.json`. All the documentation you'll read uses this newer naming
+convention.