nit(scoop): fix .exe path in Scoop manifest

Scoop maintainers prefer \ instead of / for file paths [1]. Respect
their opinion in our Scoop manifest.

Also document how to manually test changes to the manifest.

[1] ScoopInstaller/Main#3436 (comment)

Author: strager

dist/scoop/README.md

@@ -5,6 +5,14 @@ package manager.
 
 The `make-manifest.go` script modifies `quick-lint-js.json`.
 
+## Manually building the manifest
+
+1. Download `windows.zip` and `windows-x86.zip` from
+   <https://c.quick-lint-js.com/>.
+2. Run:
+   `go run dist/scoop/make-manifest.go -BaseURI https://c.quick-lint-js.com/builds/BUILD_COMMIT_HASH/ -x86-ZIP windows-x86.zip -x64-ZIP windows.zip -Out quick-lint-js.json`
+3. Test installation: `scoop install .\quick-lint-js.json`
+
 ## Publishing
 
 Every build, [CI](../../.github/workflows/build-static.yml) updates

dist/scoop/quick-lint-js.template.json

@@ -13,7 +13,7 @@
             "hash": "sha256:{{ .X86_ZIP_SHA256 }}"
         }
     },
-    "bin": "bin/quick-lint-js.exe",
+    "bin": "bin\\quick-lint-js.exe",
     "checkver": {
         "url": "https://c.quick-lint-js.com/releases/latest/scoop/quick-lint-js.json",
         "jsonpath": "$.version"