Fixed some minor errors and renamed the extension of unused files

chp3-schemas.md

@@ -1,3 +1,16 @@
+---
+jupytext:
+  formats: md:myst
+  text_representation:
+    extension: .md
+    format_name: myst
+kernelspec:
+  display_name: Julia 1.10
+  language: julia
+  name: julia-1.10
+---
+
+
 # Chapter 3: Blueprints - Part I
 
 :::{note}

chp4-schemas-part2.md

@@ -323,7 +323,6 @@ It's important to note that Petri nets were developed by practitioners, not math
 AlgebraicJulia's implementation of Petri nets is called AlgebraicPetri.jl.[^1] Documentation can be found [here](https://algebraicjulia.github.io/AlgebraicPetri.jl/dev/) along with several examples of scientific models, including population dynamics, epidemiological models and enzyme reactions.
 
 ### Databases
-
 The whole concept of a schema originally comes from database theory. We can think of the underlying connections in a schema as linked data. For example the grey circles may represent a database of 'people' and a given arrow may repesent a tabulated relationship between those people (Who loves whom? Who is the enemy of whom? etc.) Structuring a query on that database is then just building a schema to define new relationships in terms of existing ones.
 
 

chp7-dpo.md

@@ -1145,7 +1145,7 @@ to_graphviz(codom(fromR))
 
 Congratulations for making it this far! Relational thinking might feel hard but it also brings so much value to our thinking and how we interact with the world around us! Here is our two cents on why we think so!
 
-#### Relational thinking shifts vocabulary
+### Relational thinking shifts vocabulary
 
 We would first like to bring reader's attention to the some vocabulary commonly found in practice. As we all may agree, language influences thinking and vice versa.
 
@@ -1162,7 +1162,7 @@ The mathematics we used to "find-and-replace" in graphs tells us that it is not
 
 This slogan probably is the answer to all the political issues which have been brought up at the beginning of this chapter. 
 
-#### The order of processes
+### The order of processes
 
 Let us take a moment reflect on the process of modifying a graph guided by relational thinking! 
 

cover.md

@@ -16,6 +16,4 @@ kernelspec:
 :alt: Whoopsy!
 :width: 500px
 :align: center
-```
-
-
+```

intro.md

@@ -135,16 +135,16 @@ The live code environment may take a little time[^3] to start up (status is show
 
 Each chapter contains a few puzzles. These puzzles provide an opportunity to take an active role in exploring and internalising the key lessons of the chapter. We encourage to you attempt them, spend some time with them, and play, even use them as a jumping off point for daydreaming about relational thinking. There is no rush.
 
-:::{admonition} Puzzle
-You can edit the code blocks, and run them again! See if you can edit the program below so it prints a sentence describing your motivation for reading this book, instead of just "My in-line code is working, yay!". You need to click the "rocket icon" at the top right corner of this page, and select "Live code" to start editing.
+  :::{admonition} Puzzle
+  You can edit the code blocks, and run them again! See if you can edit the program below so it prints a sentence describing your motivation for reading this book, instead of just "My in-line code is working, yay!". You need to click the "rocket icon" at the top right corner of this page, and select "Live code" to start editing.
 
-:::
+  :::
 
-+++
-```{code-cell}
-print( "My in-line code is working, yay!" )
-```
-+++
+  +++
+  ```{code-cell}
+  print( "My in-line code is working, yay!" )
+  ```
+  +++
 
 ## A new medium for systems thinking
 As Andy Matuschak and Michael Nielsen write in their essay "How can we develop transformative tools for thought?":[^4]