AutoUpdate

main.go

package main

import (
    "fmt"
    "io"
    "io/ioutil"
    "log"
    "math/rand"
    "os"
    "strings"
    "time"
)

func makeReadme(filename string) error {

    // Read entire file content, giving us little control but
    // making it very simple. No need to close the file.
    content, err := ioutil.ReadFile("facts.txt")
    if err != nil {
        log.Fatal(err)
    }

    // Convert []byte to string and print to screen
    // text := string(content)
    // fmt.Println(text)

    rand.Seed(time.Now().UnixNano())

    str := string(content)
    fact := rand.Intn(len(content))
    lines := strings.Split(string(str), "\n")

    date := time.Now().Format("2 Jan 2006")

    hello := "### Hello! I’m Antariksh Pratham."
  	quote := "⚡ Fun fact: " + lines[fact]
  	updated := "<sub>Last updated by magic on " + date + ".</sub>"
  	data := fmt.Sprintf("%s\n\n%s\n\n%s\n", hello, quote, updated)

Error screenshot