nix(fix): Fix missed devtools->devTools renaming

.circleci/config.yml

@@ -152,7 +152,7 @@ jobs:
               nix-build | cachix push postgrest
 
               # Make sure that everything, including .drv files, is pushed
-              nix-env -f default.nix -iA devtools
+              nix-env -f default.nix -iA devTools
               postgrest-push-cachix
             else
               echo "Building all derivations (caching skipped for outside pull requests)..."

nix/README.md

@@ -130,7 +130,7 @@ $ nix-shell --run "postgrest-foo --bar"
 A third option is to install utilities that you use very often locally:
 
 ```bash
-$ nix-env -f default.nix -iA devtools
+$ nix-env -f default.nix -iA devTools
 
 # `postgrest-style` can now be run directly:
 $ postgrest-style