add basic support for custom emoji

content/about-treehouse.tree

@@ -19,6 +19,13 @@
     % id = "01H89RFHCQDC73N0MD2ZF629MF"
     - wouldn't you make yourself at home?
 
+    % id = "01H8VWEFHZA94G0DNPD79YV535"
+    + …
+
+        % content.link = "about/emoji"
+          id = "01H8VWEFHZ7Z71WJ347WFMC9YT"
+        + by the way did you know this website has custom emojis? and quite a lot of them, too
+
 % id = "01H89RFHCQKAPHSGCDN832QRMD"
 + ### the treehouse is a statement of artistic expression
 
@@ -125,6 +132,7 @@
                 % id = "01H89RFHCQ48R7BCZV8JWPVFCY"
                 + have I invented something new here?
 
+                    % id = "01H8VWEFJ1BGA21FBVHC4TFF3V"
                     - the "Choose Your Own Poem" lol
 
 % id = "01H89RFHCQAXJ0ST31TP1A104V"

content/about/emoji.tree

@@ -0,0 +1,8 @@
+% id = "01H8VWE6M29SZXJDDAX50K99V7"
+- ### the emojipedia
+
+    % id = "01H8VWE6M2EN8YBGPT1RTWE638"
+    - (no, not that one.)
+
+    % id = "emoji/hueh"
+    - :hueh: - stolen from the Hat in Time Discord server

content/index.tree

@@ -4,31 +4,32 @@
     % id = "01H8V556P1PND8DQ73XBTZZJH7"
     - welcome! make yourself at home
 
+    % id = "01H8VWEHX501SNYQTE61WX7YJC"
     - _"owo, what's this?"_
 
         % id = "about"
-        content.link = "about"
+          content.link = "about"
         + ## about me
 
         % id = "about-treehouse"
-        content.link = "about-treehouse"
+          content.link = "about-treehouse"
         + ## about this
 
     % id = "01H8V556P1GRAA3717VH3QJFMV"
     - hobby corners
 
         % id = "programming"
-        content.link = "2023-08-20-under-construction"
+          content.link = "2023-08-20-under-construction"
         + ## programming
 
         % id = "music"
-        content.link = "2023-08-20-under-construction"
+          content.link = "2023-08-20-under-construction"
         + ## music
 
         % id = "games"
-        content.link = "2023-08-20-under-construction"
+          content.link = "2023-08-20-under-construction"
         + ## games
 
         % id = "3d-printing"
-        content.link = "2023-08-20-under-construction"
+          content.link = "2023-08-20-under-construction"
         + ## 3D printing