[main]: Update mkdocs to zensical

.gitignore

@@ -1,4 +1,5 @@
 site/
+.cache/
 venv
 .venv
 .idea

docs/lectures/cryptography/01_intro.md

@@ -108,7 +108,7 @@ Any time you add or multiply any two numbers in the set, the result is always in
 - We can add or multiply any two numbers in the ring, and the result is in the ring
     - It is closed
 - Addition and multiplication are associative 
-    - (a+b)+c = a + (b+c)
+    - $(a+b)+c\space =\space a+(b+c)$
 - There is a neutral element 0 for addition
     - $a + 0 \equiv a\space mod \space m$
 - The additive inverse always exists

mkdocs.yml

@@ -1,6 +1,6 @@
 site_name: Notes
 theme:
-  name: material
+  variant: classic
   palette:
     - scheme: default
       primary: indigo

requirements.txt

@@ -0,0 +1 @@
+zensical==0.0.67