docs: make universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

stdlib/git/git.cue

@@ -10,7 +10,7 @@ import (
 #Repository: {
 
 	// Git remote.
-	// Example: "https://github.com/dagger/dagger")
+	// Example: "https://github.com/dagger/dagger"
 	remote: string @dagger(input)
 
 	// Git ref: can be a commit, tag or branch.

stdlib/random/string.cue

@@ -1,12 +1,16 @@
 // Random generation utilities.
 //
 // Example:
-// ```
+//
+// ```cue
 // str: random.#String & {
 //   seed: "str"
 //   length: 10
 // }
 // ```
+//
+//
+//
 package random
 
 import (