Spellcheck. :-/

docs/BuildPrerequisites.md

@@ -3,25 +3,24 @@
 Run the following commands to install build tools required by the PiPedal build.
 
     # install CMake
-    sudo apt updatee
+    sudo apt update
+    sudo apt upgrade
     sudo apt install -y cmake ninja-build build-essential g++ git
 
 The PiPedal build process also requires version 12 or later of `node.js`. Type `node --version` to see if you have a version 
-of `node.js` installed already. Otherwise run the following commands as root to install the v14.x lts version of `node.js`: 
-`
+of `node.js` installed already. Otherwise run the following commands as root to install a current version of version of `node.js`: 
+
+
    sudo apt install nodejs npm curl
 
-If your distribution doesn't provide a suitable version of nodejs, you can install the current LTS version of nodejs
-with
-
-    # install NodeJS latest LTS release.
-    curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
-    sudo apt-get install -y nodejs npm
 
+If your distribution doesn't provide a suitable version of nodejs, 
+please refer to the `node.js` website for instructions on [how to install the latest version of `node.js`](https://nodejs.org/en/download) directly.
 
 Run the following commands to install dependent libraries required by the PiPedal build.
  
     sudo apt update 
+    sudo apt upgrade
     sudo apt install -y liblilv-dev libboost-dev  \
         libsystemd-dev catch libasound2-dev uuid-dev \
         authbind libavahi-client-dev  libnm-dev libicu-dev \
@@ -37,12 +36,12 @@ If you are using Visual Studio Code, install the following Extensions:
 - C/C++ Extension Pack (Microsoft).
 - CMake Tools (Microsoft)
 
-Clone the rerdavies/pipdal package from github. Use the source control tools from Visual Studio Code, or 
-   
-    cd ~/src    # or whereever you keep your source repositories.
-    git clone https://github.com/rerdavies/pipedal.git 
-   
-In the project root, run the following commands to initialze and update pipedal submodules. These steps 
+Clone the `rerdavies/pipedal` package from github. Use the source control tools from Visual Studio Code, or
+
+    cd ~/src    # or wherever you keep your source repositories.
+    git clone https://github.com/rerdavies/pipedal.git
+
+In the project root, run the following commands to initialize and update PiPedal submodules. These steps
 must be performed even if you used Visual Studio Code to initially install the project.
 
     cd ~/src/pipedal