docs: include a "v" before version names (#549)

website/content/docs/releases/release-notes/0_1_0.mdx

@@ -1,11 +0,0 @@
----
-layout: docs
-page_title: 0.1.0
-sidebar_title: 0.1.0
-description: |-
-  Boundary release notes for 0.1.0
----
-
-# Boundary 0.1.0 Release notes
-
-~> **Coming soon.** This page is not yet available.

website/content/docs/releases/release-notes/v0_1_0.mdx

@@ -0,0 +1,11 @@
+---
+layout: docs
+page_title: v0.1.0
+sidebar_title: v0.1.0
+description: |-
+  Boundary release notes for v0.1.0
+---
+
+# Boundary v0.1.0 Release notes
+
+~> **Coming soon.** This page is not yet available.

website/content/docs/roadmap/v0_2_0.mdx

@@ -1,7 +1,7 @@
 ---
 layout: docs
-page_title: Roadmap - 0.2.0
-sidebar_title: Roadmap - 0.2.0
+page_title: Roadmap - v0.2.0
+sidebar_title: Roadmap - v0.2.0
 description: Boundary Roadmap
 ---
 

website/data/docs-navigation.js

@@ -97,14 +97,14 @@ export default [
   '---',
   {
     category: 'roadmap',
-    content: ['0_2_0'],
+    content: ['v0_2_0'],
   },
   {
     category: 'releases',
     content: [
       {
         category: 'release-notes',
-        content: ['0_1_0'],
+        content: ['v0_1_0'],
       },
     ],
   },