Add Collab Summit to nodejs.org (#1367)

* update dates for codeandlearn

* add collab summit to get involved

Author: hackygolucky

locale/en/get-involved/collab-summit.md

@@ -0,0 +1,36 @@
+---
+title: Collab Summit
+layout: contribute.hbs
+---
+
+# Collab Summit
+Collaboration Summit is an un-conference for bringing current and
+potential contributors together to discuss Node.js  with lively collaboration,
+education, and knowledge sharing. Committees and working groups come together
+twice per year to make important decisions while also being able to work on some
+exciting efforts they want to push forward in-person.
+
+## Who attends?
+
+Anyone is welcome to attend Collab Summit. Conversations can move fast as
+working groups have a lot of context. However, this Fall's instance of Collab
+Summit will include a morning [Code + Learn](https://nodejs.org/en/get-involved/code-and-learn/)
+to learn how to contribute prior to congregating for the summit. During the
+summit, leaders will help onboard new contributors to groups they'd love to help
+prior to integrating them into the working sessions.
+
+This is your opportunity to learn what is happening within the community to jump
+in and contribute with the skills you have and would like to hone.
+
+Working groups will put together a schedule so that people can
+familiarize themselves before folks get onsite, having the general collaborator
+discussions, and then dive into breakout sessions.
+
+We'd love to see you at Collab Summit! Check out the [Summit repo](https://github.com/nodejs/summit)
+for [issues filed](https://github.com/nodejs/summit/issues) that share what
+individual working groups and committees are looking to discuss in-person.
+
+## Past Collab Summit events
+- Berlin in May 2017
+- Austin in December 2016
+- Amsterdam in September 2016

locale/en/site.json

@@ -144,6 +144,10 @@
             "link": "get-involved/code-and-learn",
             "text": "Code + Learn"
         },
+        "collab-summit": {
+            "link": "get-involved/collab-summit",
+            "text": "Collab Summit"
+        },
         "contribute": {
             "link": "get-involved/contribute",
             "text": "Contribute"
@@ -157,11 +161,11 @@
             "text": "Conduct"
         }
     },
-    "security": { 
+    "security": {
         "link": "security",
         "text": "Security"
     },
-    "blog": { 
+    "blog": {
         "link": "blog",
         "text": "News"
     },