Some doc code fixes

Author: chenglou

pages/docs/manual/latest/bind-to-global-js-values.mdx

@@ -82,7 +82,7 @@ you can bind to an arbitrarily deep object by passing a tuple to `bs.scope`:
 
 ```res
 @bs.val @bs.scope(("window", "___location", "ancestorOrigins"))
-external length : int = "length"
+external length: int = "length"
 ```
 ```js
 // Empty output

pages/docs/manual/latest/bind-to-js-function.mdx

@@ -293,7 +293,8 @@ external processOnExit: (
   @bs.as("exit") _,
   int => unit
 ) => unit = "process.on"
-let () = processOnExit(exitCode =>
+
+processOnExit(exitCode =>
   Js.log("error code: " ++ Js.Int.toString(exitCode))
 );
 ```
@@ -424,8 +425,10 @@ For JS functions that return a value that can also be `undefined` or `null`, we
 ```res
 type element
 type dom
+
 @bs.send @bs.return(nullable)
 external getElementById: (dom, string) => option<element> = "getElementById"
+
 let test = dom => {
   let elem = dom->(getElementById("haha"))
   switch (elem) {

pages/docs/manual/latest/interop-cheatsheet.mdx

@@ -189,7 +189,7 @@ Final escape hatch converter. Do not abuse.
 <CodeTab labels={["ReScript", "JS Output"]}>
 
 ```res
-external convertToFloat : int => float = "%identity"
+external convertToFloat: int => float = "%identity"
 let age = 10
 let gpa = 2.1 +. convertToFloat(age)
 ```

pages/docs/manual/latest/lazy-values.mdx

@@ -55,7 +55,7 @@ console.log(CamlinternalLazy.force(getFiles));
 
 </CodeTab>
 
-... or you can also wrap an existing function to make it lazy:
+...or you can also wrap an existing function to make it lazy:
 
 <CodeTab labels={["ReScript", "JS Output"]}>
 
@@ -252,11 +252,9 @@ Whenever a lazy value computation raises an exception, the same exception will b
 
 ```res example
 let readFile =
-  lazy(
-    {
-      raise(Not_found)
-    }
-  )
+  lazy({
+    raise(Not_found)
+  })
 
 try {
   Lazy.force(readFile)

pages/docs/manual/latest/pipe.mdx

@@ -111,7 +111,10 @@ You'd use them like this:
 <CodeTab labels={["ReScript", "JS Output"]}>
 
 ```res
-let result = Js.Array2.filter(Js.Array2.map([1, 2, 3], a => a + 1), a => mod(a, 2) == 0)
+let result = Js.Array2.filter(
+  Js.Array2.map([1, 2, 3], a => a + 1),
+  a => mod(a, 2) == 0
+)
 
 send(setWaitDuration(asyncRequest(), 4000))
 ```
@@ -134,7 +137,7 @@ This looks much worse than the JS counterpart! Clean it up visually with pipe:
 ```res
 let result = [1, 2, 3]
   ->map(a => a + 1)
-  ->filter(a => mod(a, 2) === 0)
+  ->filter(a => mod(a, 2) == 0)
 
 asyncRequest()->setWaitDuration(4000)->send
 ```