Add instructions to install dev version

README.md

@@ -6,11 +6,13 @@ for regular use.
 Currently, it has an LSP component and a corresponding VS Code(ium) extension.
 
 ## Current features
+
 - Syntax highlighting
 - Compiles Typst into a PDF as you type
 - Compile errors appear in the Output pane
 
 ## Near future goals
+
 - Improved preview
 - Completion
 - Improved development experience
@@ -20,27 +22,36 @@ Currently, it has an LSP component and a corresponding VS Code(ium) extension.
 ## Development guide
 
 ### Prerequisites
+
 Install:
+
 - [Rust](https://www.rust-lang.org/) for the LSP itself
 - [node](https://nodejs.org/en) for the VS Code extension; it may be easiest to
     install via [nvm](https://github.com/nvm-sh/nvm)
 
 ### First time setup
+
 1. Clone this repository locally
 2. Open it in VS Code; it's needed to run the extension
 3. In the `addons/vscode` subdirectory:
     1. Run `npm install` to install extension dependencies
     2. Run `npm run compile` to build the extension
 4. Run through the development cycle once to initialize and test everything
+5. If you want to install the dev version of the extension: After finishing the
+last step in Development Cycle, then press <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>P</kbd>,
+and choose `Developer: Install Extension from Location...` and choose the
+the root directory for the extension. There will not be any messages, but
+the extension can be found in the Extensions `@installed` list.
 
 ### Development cycle
+
 1. Make any changes
 2. Run `cargo install --path .`; at present, the VS Code extension just invokes
     the `typst-lsp` command to start the LSP, and this command will compile and
     replace that binary with the latest version
     - If modifying the extension, keep `npm run watch` running, or `npm run compile`
         after changes
-3. Press `ctrl+F5` to launch the "Extension Development Host"; if it's already
+3. Press <kbd>Ctrl</kbd>+<kbd>F5</kbd> to launch the "Extension Development Host"; if it's already
     running, invoke "Developer: Reload Window" from the command palette in the
     Extension Development Host
 4. Within the Extension Development Host, the extension will be active and ready