Attempt to add CommentBox comments

It doesn't show locally, which I understand is expected.

Also update privacy policy.

_config.yml

@@ -13,7 +13,7 @@
 title: MaybeFIRE
 
 # Your name to show in the footer
-author: TBD
+author: Brian Williammee
 
 ###############################################
 # --- List of links in the navigation bar --- #
@@ -60,7 +60,7 @@ social-network-links:
 #  youtube: "@daattali"
 #  medium: yourname
 #  reddit: yourname
-#  linkedin: daattali
+  linkedin: brian-williammee
 #  xing: yourname
 #  stackoverflow: "3943160/daattali"
 #  snapchat: deanat78
@@ -200,7 +200,7 @@ goat_counter: true
 #fb_comment_id: ""
 
 # To use CommentBox, sign up for a Project ID on https://commentbox.io
-#commentbox: "" # Project ID, e.g. "5694267682979840-proj"
+commentbox: "5734507281907712-proj"
 
 # To use Utterances comments: (0) uncomment the following section, (1) fill in
 # "repository" (make sure the repository is public), (2) Enable Issues in your repository,

privacy.md

@@ -15,6 +15,11 @@ Goatcounter does not use cookies, and it does not persistently store any persona
 that Goatcounter collects, and see [Goatcounter's GDPR page](https://www.goatcounter.com/help/gdpr)
 for an explanation of why this site does not have a GDPR consent notice.
 
+This website uses CommentBox to save and display users' comments. See the
+[CommentBox privacy policy](https://commentbox.io/privacy) for the specific information
+that Goatcounter collects.  If you sign in to leave comments via another login service, your
+data will be subject to the privacy policy of that service.
+
 If you visit external sites linked by this site, including social media sites, your personal
 information will be used and stored according to those sites' privacy policies.