Minor documentation improvements

README.md

@@ -77,7 +77,7 @@ underscore.
 See the plugins in ./pipeline/plugins for documentation on specific
 plugins.
 
-## LaTeX Usage
+## LaTeX + Jinja Usage
 
 Mostly you should just use standard LaTeX in OTS Doctools documents.
 However, there are some things you should know:
@@ -92,7 +92,7 @@ input file:
   title: "My Life as an Eggplant Hunter:\\\\Nobody Told Me They Could Run So Fast"
   date: 31 Nov 2023
   draft: true
-  fish: halibut
+  fruit: durian
   ---
 ```
 
@@ -103,17 +103,17 @@ jinja.)  If the value of `draft` is `true`, then every page will get a
 large, light gray "DRAFT" diagonal watermark.
 
 Other variables are just there to be referred to later.  For example,
-in the above example, the value of `fish` is `halibut`, so if you put
+in the above example, the value of `fruit` is `durian`, so if you put
 this in your latex:
 
 ```
-  I always ate eggplant, even when offered \VAR{fish}.
+  I always ate eggplant, even when offered \VAR{fruit}.
 ```
 
 It will render as this in the output:
 
 ```
-  I always ate eggplant, even when offered halibut.
+  I always ate eggplant, even when offered durian.
 ```
 
 ### Avoid accidentally triggering jinja