Add form quick start documentation

Form quick start documentation contains info on
using the form and form group components, and the Vuelidate plugin.

This doc also provides a template for creating a new form.

Signed-off-by: Dixsie Wolmers <dixsie@ibm.com>
Change-Id: I5d05141ff05cd069e55853a8b2cb4adecb3c848a
diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index ed0035c..e48e166 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -60,6 +60,7 @@
           {
             title: "Quick Start",
             children: [
+            "/guide/quickstart/forms",
             "/guide/quickstart/page-anatomy",
             "/guide/quickstart/store-anatomy"
           ]