add note on opening R terminal with command palette

Author: hturner

docs/tutorials/running_r.md

@@ -1,5 +1,5 @@
 
-1) Create a file in VS Code ending with a .R extension. You can create new files
+1) Create a file in VS Code ending with a `.R` extension. You can create new files
 by clicking on the new file icon in VS Code Explorer, or use the `code` command
 in the terminal to create and open an R file
 
@@ -10,11 +10,25 @@ code R/test.R
 ![alt text](../assets/rdev4.png)
 
 2) You should see `R:(not attached)` in the Status Bar at the bottom of the
-VSCode window.
+VSCode window:
 
 ![alt text](../assets/rdev11.png)
 
-3) Click on the `R:(not attached)` link to launch an R terminal. You can then
-send code from the `.R` file to the R terminal by pressing `cmd/ctrl + enter`.
+Click on the `R:(not attached)` link to launch an R terminal.
 
-![alt text](../assets/rdev12.png) ![alt text](../assets/rdev5.png)
+![alt text](../assets/rdev12.png)
+
+<!-- markdownlint-disable MD046 -->
+!!! Note
+    If you don't see the `R:(not attached)` link in the status
+    bar, you can open an R terminal using the VS Code Command Palette. Click the
+    cog icon ('Manage') in the bottom left of the VS Code window, then click
+    `Command Palette` (note the keyboard shortcut displayed next to this menu
+    item for future use). This starts a prompt at the top of the VS Code window.
+    Type `R terminal` and select the command `R: Create R terminal`.
+<!-- markdownlint-enable MD046 -->
+
+3) You can then send code from the `.R` file to the R terminal by pressing
+`cmd/ctrl + enter`.
+
+![alt text](../assets/rdev5.png)