doc: pin version of vercel-rust in the example (#56)

ngryman · web-flow · commit a9495a0f0d88 · 2021-12-23T12:54:25.000-06:00
diff --git a/README.md b/README.md
@@ -16,7 +16,7 @@ First, you'll need a `vercel.json` file in your project:
 {
   "functions": {
     "api/**/*.rs": {
-      "runtime": "vercel-rust@latest"
+      "runtime": "vercel-rust@3.1.2"
     }
   }
 }

Original file line number	Diff line number	Diff line change
@@ -16,7 +16,7 @@ First, you'll need a `vercel.json` file in your project:
`16`	`16`	`{`
`17`	`17`	`"functions": {`
`18`	`18`	`"api/*/.rs": {`
`19`		`- "runtime": "vercel-rust@latest"`
	`19`	`+ "runtime": "vercel-rust@3.1.2"`
`20`	`20`	`}`
`21`	`21`	`}`
`22`	`22`	`}`