Add installation guide to VS Code Extension readme

.github/workflows/ci.yml

@@ -103,10 +103,53 @@ jobs:
     - name: Run tests
       run: cargo test --locked ${{ env.MSRV_FEATURES }}
 
+  vscode_extension_package:
+    name: Package vscode extension
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./vscode-extension
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+
+      - name: Install VS Code extension dependencies
+        run: npm install
+
+      - name: package.json info
+        id: vsce-info
+        uses: jaywcjlove/github-action-package@main
+        with:
+          path: ./vscode-extension/package.json
+
+      - name: "Create VS Code extension package"
+        id: vsce-package 
+        shell: bash
+        run: |
+          BASE_PATH="${{ env.CICD_INTERMEDIATES_DIR }}"
+          VSCE_NAME=${{ steps.vsce-info.outputs.name }}-v${{ steps.vsce-info.outputs.version }}.vsix
+          VSCE_PATH="${BASE_PATH}/out/${VSCE_NAME}"
+          mkdir -p "${BASE_PATH}/out"
+          npm run vscode:package -- --out="${VSCE_PATH}"
+          echo "VSCE_NAME=${VSCE_NAME}" >> $GITHUB_OUTPUT
+          echo "VSCE_PATH=${VSCE_PATH}" >> $GITHUB_OUTPUT
+
+      - name: "Artifact upload: VSCode extension"
+        uses: actions/upload-artifact@master
+        with:
+          name: ${{ steps.vsce-package.outputs.VSCE_NAME }}
+          path: ./vscode-extension/${{ steps.vsce-package.outputs.VSCE_PATH }}
+
   build:
     name: ${{ matrix.job.target }} (${{ matrix.job.os }})
     runs-on: ${{ matrix.job.os }}
-    needs: crate_metadata
+    needs: 
+      - crate_metadata
     strategy:
       fail-fast: false
       matrix:

vscode-extension/README.md

@@ -9,9 +9,16 @@ The Numbat extension provides language support for the [Numbat](https://github.c
 - comment toggling
 - autosurrounding brackets
 
+## Installation
+
+To install this extension you will need to download the extension installation file (VSIX file), which can be found in the assets of each [numbat release](https://github.com/sharkdp/numbat/releases) after v1.15.0.  
+Once the VSIX file has been downloaded, open visual studio code and go to the _Extensions_ tab of the sidebar. Click the three dots in the upper right corner of the tab and chose the _"Install from VSIX..."_ option. Find the VSIX file via the file picker and select it to install it.
+
+![Screenshot of an the open extensions menu with the "Install from VSIX..." option underlined in red](./assets/installation-instruction.png)
+
 ## Requirements
 
-_TO BE DONE_  
+_None_  
 
 ## Extension Settings