recommend Typora not MacDown (#367)

@mercadon and @ebrodymoore reported that MacDown did not work ("damaged file") in https://sourcegraph.slack.com/archives/CQ44Y7F4G/p1574209805035700?thread_ts=1574208082.035400&cid=CQ44Y7F4G.
sourcegraph · Nov 20, 2019 · 7394749 · 7394749
1 parent e506915
commit 7394749
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/handbook/editing.md b/handbook/editing.md
@@ -77,7 +77,7 @@ Here's a screen recording of the steps (written out below) for macOS:
 
 Optional:
 
-- Use [MacDown](https://macdown.uranusjr.com/) to edit and preview Markdown (`.md`) files.
+- Use [Typora](https://www.typora.io/) to edit and preview Markdown (`.md`) files.
 
 #### Steps
 
@@ -113,4 +113,4 @@ cd ~/Documents/GitHub/about
 
 Keep the terminal window open while you're browsing the local preview site.
 
-If it has been a while since you last downloaded the release of docsite, or if you see unexpected errors, follow the steps above again and get a newer version (the `N.N.N` in the filename should be larger).
+If it has been a while since you last downloaded the release of docsite, or if you see unexpected errors, follow the steps above again and get a newer version (the `N.N.N` in the filename should be larger).