feat: update README and change default port

* Add table of contents to improve README navigation
* Update About section to reflect migration from static site to Haskell
  project
* Change default fallback port from 3000 to 8080 when PORT env var is
  not set

README.md

@@ -1,14 +1,17 @@
 # Portfolio
+<!--toc:start-->
+- [Portfolio](#portfolio)
+  - [About it](#about-it)
+  - [What about the design ?](#what-about-the-design)
+<!--toc:end-->
 
 To view the website, click [here](https://hexasec.io).  
 
 ## About it
 
-This portfolio is a single simple web page, and I intend to keep it that way :  
-* It is easier for me to maintain  
-* I pretty much hate web dev, so I have to keep things simple  
-
-The website itself has the sole goal to get to know my projects, my skills and where to contact me, so it doesn't need much.  
+This portfolio is a Haskell web project, but it used to be a single simple web page, why this change ?
+* I discovered Haskell, and I wanted to see how it could be used to handle web dev
+* I wanted to protect the portfolio for unwanted (and pretty simple) web scrapping, so I had to put things on server side
 
 ## What about the design ?
 

app/Main.hs

@@ -14,7 +14,7 @@ import qualified Routes
 
 main :: IO ()
 main = do
-  port <- read <$> getEnv "PORT" `catch` \(_ :: IOError) -> return "3000"
+  port <- read <$> getEnv "PORT" `catch` \(_ :: IOError) -> return "8080"
   putStrLn $ "Starting server on port " ++ show port
   scotty port $ do
     middleware logStdoutDev