Document how to use correctly encoded paths

[posva]

From vuejs/vue-router#3464

• Add to migration guide the need of encoding path in routes
• Examples on how to use router-link and router.push with string/{ path } locations

[BboyAkers]

You need help with this?👀 I can take a stab at it!

[posva]

Thank you but I think this one I will have to tackle myself. I will help with reviews though!

[BobbieGoede]

Maybe this issue slipped under the radar 😅 are you still planning to add this to the docs?