docs: add script to serve mkdocs locally

docs/README.md

@@ -7,6 +7,8 @@ Documentation is currently built using Python 3.11, though it should work fine w
 
 ## Running locally
 
+One way is to just run `serve.sh`. Alternatively, the manual steps are:
+
 ```bash
 # Change directories to the documentation.
 cd docs/

docs/serve.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+VENV_PATH="./venv/"
+PYTHON_CMD=${1:-python}
+
+if [ ! -d $VENV_PATH ]; then
+    echo "venv not found, creating one using the command '${PYTHON_CMD}'...";
+    $PYTHON_CMD -m venv venv;
+    source ./venv/bin/activate;
+    pip install --upgrade pip;
+    pip install -r requirements.txt;
+    ./venv/bin/mkdocs serve;
+else
+    echo "venv already found.";
+    source ./venv/bin/activate;
+    ./venv/bin/mkdocs serve;
+fi;
+