streamlined

we don't need to title these code boxes, it's overkill

Author: vdauwera

docs/side_quests/metadata.md

@@ -37,8 +37,6 @@ Before taking on this side quest, you should:
 
 ## 0. Get started
 
-Before we dive in, let's make sure you have everything you need.
-
 #### Open the training codespace
 
 If you haven't yet done so, make sure to open the training environment as described in the [Environment Setup](../envsetup/index.md).
@@ -47,15 +45,15 @@ If you haven't yet done so, make sure to open the training environment as descri
 
 #### Move into the project directory
 
-Let's move into the project directory.
+Let's move into the directory where the files for this tutorial are located.
 
-```bash title="Navigate to the project directory"
+```bash
 cd side-quests/metadata
 ```
 
 You can set VSCode to focus on this directory:
 
-```bash title="Open VSCode in current directory"
+```bash
 code .
 ```
 
@@ -64,7 +62,6 @@ code .
 You'll find a main workflow file and a `data` directory containing a samplesheet and a handful of data files.
 
 ```console title="Directory contents"
-> tree
 .
 ├── data
 │   ├── bonjour.txt
@@ -79,8 +76,6 @@ You'll find a main workflow file and a `data` directory containing a samplesheet
 └── nextflow.config
 ```
 
-Each data file contains some greeting text in one of five languages (French, German, Spanish, Italian, English).
-
 The datasheet list the paths to the data files and some associated metadata, organized in 3 columns:
 
 - `id`: self-explanatory, an ID given to the file
@@ -98,6 +93,8 @@ sampleF,moose,/workspaces/training/side-quests/metadata/data/salut.txt
 sampleG,turtle,/workspaces/training/side-quests/metadata/data/ciao.txt
 ```
 
+Each data file contains some greeting text in one of five languages (French, German, Spanish, Italian, English).
+
 We will also provide you with a containerized language analysis tool called `langid`.
 
 #### Scenario