Tweaking Information about full stack role

[dennyabrain]

1. On the page https://tattle.co.in/join-us, instead of 'Apply Here', the link should say 'Learn more'
2. On this page, Before About tattle, there should be a heading of type h1, with the label 'Full Stack Developer'
3. right now the webpage for full stack developer resides on https://tattle.co.in/fullstack/, it should be on https://tattle.co.in/job/fullstack/, to do this, all you have to do is create a folder called jobs in pages and put your fullstack.mdx file in it. Gatsby will take care of the rest