Rename post

dynamic-routes-starter/posts/first-post.md

@@ -1,8 +0,0 @@
----
-title: "First Post"
-date: "2020-01-01"
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-
-This is the first post!
-
-It uses the [Static Generation](https://nextjs.org/docs/basic-features/pages) feature of Next.js.

dynamic-routes-starter/posts/pre-rendering.md

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+---
+title: "Two Forms of Pre-rendering"
+date: "2020-01-01"
+---
+
+[Next.js](https://nextjs.org/) has two forms of pre-rendering: **Static Generation** and **Server-side Rendering**. The difference is in **when** it generates the HTML for a page.
+
+- **Static Generation (Recommended)**: The HTML is generated at **build time** and will be reused on each request.
+- **Server-side Rendering**: The HTML is generated on **each request**.
+
+Importantly, Next.js lets you **choose** which pre-rendering form you'd like to use for each page. You can create a "hybrid" Next.js app by using Static Generation for most pages and using Server-side Rendering for others.