docs: add release announcement post (#617)

* docs: add release announcement post

- add mailchimp newsletter form
- fix wording
- fix mobile
- fix changelog links
- fix release drafter to use our format (GH-$ISSUE)

Signed-off-by: Bobby DeSimone <bobbydesimone@gmail.com>

docs/.vuepress/config.js

@@ -5,14 +5,33 @@ module.exports = {
     "Pomerium is a beyond-corp inspired, zero trust, open source identity-aware access proxy.",
   plugins: {
     sitemap: {
-      hostname: "https://www.pomerium.io"
+      hostname: "https://www.pomerium.io",
     },
     "@vuepress/google-analytics": {
-      ga: "UA-129872447-2"
-    }
+      ga: "UA-129872447-2",
+    },
+    "@vuepress/blog": {
+      directories: [
+        {
+          id: "post",
+          dirname: "_posts",
+          path: "/posts/",
+          itemPermalink: "/posts/:year/:month/:day/:slug",
+        },
+      ],
+    },
+    "vuepress-plugin-mailchimp": {
+      title: "Sign up to be notified of new features and updates",
+      content: " ",
+      endpoint:
+        "https://pomerium.us19.list-manage.com/subscribe/post?u=76f0996a737c138396687fd6b&id=2f4f70cf07",
+      sitemap: {
+        hostname: "https://www.pomerium.io",
+      },
+    },
   },
   markdown: {
-    externalLinkSymbol: false
+    externalLinkSymbol: false,
   },
   themeConfig: {
     logo: "/logo-long-civez.png",
@@ -38,13 +57,13 @@ module.exports = {
           { text: "v0.4.x", link: "https://0-4-0.docs.pomerium.io/docs" },
           { text: "v0.3.x", link: "https://0-3-0.docs.pomerium.io/docs" },
           { text: "v0.2.x", link: "https://0-2-0.docs.pomerium.io/docs" },
-          { text: "v0.1.x", link: "https://0-1-0.docs.pomerium.io/docs" }
-        ]
-      }
+          { text: "v0.1.x", link: "https://0-1-0.docs.pomerium.io/docs" },
+        ],
+      },
     ],
     algolia: {
       apiKey: "1653e881f3a6c17d3ad37f4d4c428e20",
-      indexName: "pomerium"
+      indexName: "pomerium",
     },
     sidebar: {
       "/docs/": [
@@ -59,8 +78,8 @@ module.exports = {
             "releases",
             "upgrading",
             "CHANGELOG",
-            "FAQ"
-          ]
+            "FAQ",
+          ],
         },
         {
           title: "Quick Start",
@@ -74,8 +93,8 @@ module.exports = {
             "quick-start/helm",
             "quick-start/kubernetes",
             "quick-start/synology",
-            "quick-start/from-source"
-          ]
+            "quick-start/from-source",
+          ],
         },
         {
           title: "Identity Providers",
@@ -91,8 +110,8 @@ module.exports = {
             "identity-providers/github",
             "identity-providers/google",
             "identity-providers/okta",
-            "identity-providers/one-login"
-          ]
+            "identity-providers/one-login",
+          ],
         },
         {
           title: "Community",
@@ -104,8 +123,8 @@ module.exports = {
             "community/",
             "community/contributing",
             "community/code-of-conduct",
-            "community/security"
-          ]
+            "community/security",
+          ],
         },
         {
           title: "Reference",
@@ -119,9 +138,9 @@ module.exports = {
             "reference/impersonation",
             "reference/programmatic-access",
             "reference/getting-users-identity",
-            "reference/production-deployment"
-          ]
-        }
+            "reference/production-deployment",
+          ],
+        },
       ],
       "/recipes/": [
         {
@@ -130,8 +149,8 @@ module.exports = {
 
           collapsable: false,
           sidebarDepth: 1,
-          children: ["", "ad-guard", "vs-code-server", "kubernetes"]
-        }
+          children: ["", "ad-guard", "vs-code-server", "kubernetes"],
+        },
       ],
       "/enterprise/": [
         {
@@ -139,8 +158,8 @@ module.exports = {
           type: "group",
           collapsable: false,
           sidebarDepth: 1,
-          children: [""]
-        }
+          children: [""],
+        },
       ],
       "/configuration/": [
         {
@@ -148,9 +167,9 @@ module.exports = {
           type: "group",
           collapsable: false,
           sidebarDepth: 1,
-          children: ["", "examples"]
-        }
-      ]
-    }
-  }
+          children: ["", "examples"],
+        },
+      ],
+    },
+  },
 };