Merge pull request #39 from logankilpatrick/patch-1

Add basic env docs

Author: logankilpatrick

docs/src/userguide/env.md

@@ -1 +1,9 @@
 # Julia Environments
+
+The Julia VSCode Extension provides support for managing and switching your current Julia environment. You can click the "Julia env" button as shown below to select which environment you want to use:
+
+<img width="1903" alt="Screen Shot 2021-08-24 at 6 14 50 PM" src="https://user-images.githubusercontent.com/35577566/130712226-20d40239-7ba9-4313-be38-dd84ee5ad9af.png">
+
+If your active directory (shown on the left side of VSCode) contains a Julia environment and you try to switch to an alternate environment, you will be prompted with the message shown below:
+
+<img width="1903" alt="Screen Shot 2021-08-24 at 6 41 34 PM" src="https://user-images.githubusercontent.com/35577566/130712430-b01f1c7a-b0ee-4774-8f10-a03ad06b991c.png">