fix: gif & formatting (#5)

Author: Morgy93

README.md

@@ -14,7 +14,7 @@
 
 > A tool for glamorous shell scripts. Leverage the power of [Bubbles](https://github.com/charmbracelet/bubbles) and [Lip Gloss](https://github.com/charmbracelet/lipgloss) in your scripts and aliases without writing any Go code!
 >
-> <img alt="Shell running the ./demo.sh script" width="600" src="https://camo.githubusercontent.com/f820a22f7574d55e1d9ccd3bfb0d8c337811ff05ea07d8d4b504dd0dc09ee24e/68747470733a2f2f73747566662e636861726d2e73682f67756d2f64656d6f2e676966">
+> ![gum](https://github.com/Morgy93/ddev-gum/assets/7961978/426f48a5-f02e-423e-a894-ca54bd2cd0d1)
 
 For more information, see the [official repository](https://github.com/charmbracelet/gum) or visit <https://charm.sh/>.
 
@@ -24,7 +24,7 @@ YouTube Shorts: [Gum: Write Glamorous Shell Scripts](https://www.youtube.com/wat
 
 ## Installation
 
-```
+```shell
 ddev get Morgy93/ddev-gum
 ddev restart
 ```
@@ -33,13 +33,13 @@ ddev restart
 
 ### Host shell
 
-```
+```shell
 ddev gum
 ```
 
 ### Inside DDEV web commands
 
-```
+```shell
 gum
 ```