Update schedule (#140)

* Add mimi and brittney to ama in schedule

* Update mimi

* Update mimi name

* Update mimis name in schedule

Author: deweydell

content/2019/schedule.json

@@ -439,7 +439,11 @@
               {
                 "time": "3:00 PM",
                 "title": "Write/Speak/Code Start a Chapter AMA",
-                "additionalNames": ["Lisa van Gelder"]
+                "additionalNames": [
+                  "Lisa van Gelder",
+                  "Brittney Braxton",
+                  "Tien \"Mimi\" Nguyen"
+                ]
               },
               {
                 "time": "3:30 PM",

content/speakers/tien-mimi-nguyen.json

@@ -0,0 +1,15 @@
+{
+  "name": "Tien \"Mimi\" Nguyen",
+  "pronouns": "she/her",
+  "role": "Technical Writer",
+  "company": "Sentry.io",
+  "bio": "Mimi can order from a restaurant menu in under fifteen seconds and have zero regrets. She is a Technical Writer at Sentry.io, a chapter organizer for Write/Speak/Code San Francisco, and a proud coding bootcamp grad. Before starting her career in tech, Mimi wrote creative nonfiction and received a Master of Fine Arts in Creative Writing from Northwestern University.",
+  "headshot": "/images/tien-mimi-nguyen.jpg",
+  "layout": "speaker",
+  "years": ["2019"],
+  "links": [
+    { "type": "twitter", "url": "Mimi_Dumpling" },
+    { "type": "linkedin", "url": "tien-mimi-nguyen" },
+    { "type": "github", "url": "MimiDumpling" }
+  ]
+}