Update README.md with an example

martinbeentjes · web-flow · commit 729990bf89ef · 2020-04-04T17:00:11.000+02:00
Fixes martinbeentjes#1
diff --git a/README.md b/README.md
@@ -1,3 +1,14 @@
 # npm-get-version-action
 
 This GitHub Action retrieves the package version from the package.json file and sets the version in the `current-version` output value usable in your workflow file.
+
+## Example
+
+To use this action in your project, use the following:
+
+```
+ - name: get-npm-version
+   uses: martinbeentjes/npm-get-version-action@v1
+```
+
+The Action sets an output variable called `current-version` which can be used in a following step by using `${{ steps.get-npm-version.outputs.current-version}}``.
