Update roadmap.yml (mapbox#3670)

* Make parts of speech consistent on roadmap

* Update roadmap

* Updated based on PR feedback

docs/_data/roadmap.yml

@@ -1,33 +1,36 @@
-- 
+-
   term: "Active development"
-  items: 
+  items:
     -
-      name: Unify Camera API into a single method
+      name: Unify camera API into a single method
       issues: ["3583", "2801"]
     -
-      name: Augmenting "data" events
+      name: Augment "data" events
       issues: ["3577", "3578"]
-    - 
-      name: Vertical text rendering improvements
-      issues: ["3438", "3470", "3402"]
+    -
+      name: Allow <code>setStyle()</code> to smoothly transition between styles
+      issues: ["1989"]
+    -
+      name: Add <code>canvas</code> layer type
+      issues: ["3580"]
 -
   term: "Upcoming"
   items:
     -
-      name: Improve performance around setting styles with <code>setStyle()</code>
-      issues: ["1370", "1989"]
+      name: Allow raster source "loading" pattern and "errored" pattern
+      issues: ["3280"]
+    -
+      name: Add <code>circle-stroke-*</code> style properties
+      issues: ["3670"]
+    -
+      name: Add <code>Map#{add,remove}Image</code>
+      issues: ["2059"]
     -
-      name: Fix GeoJSON memory leak
-      issues: ["3220", "3595"]
+      name: Improve benchmarking tools
+      issues: ["3237", "3495", "3031", "2253", "3248"]
     -
-      name: Custom source type API
+      name: Create custom source API
       project: 2
     -
-      name: Version 1.0 and API stability
+      name: Stabilize all APIs in prepration for v1
       issues: ["2803", "2727", "2506", "2112", "1408"]
-    -
-      name: Raster source "loading" pattern and "errored" pattern
-      issues: ["3280"]
-    -
-      name: Benchmarking improvements
-      issues: ["3237", "3495", "3031", "2253", "3248"]