Update runtime files
diff --git a/runtime/indent/chatito.vim b/runtime/indent/chatito.vim
new file mode 100644
index 0000000..1ff5e9e
--- /dev/null
+++ b/runtime/indent/chatito.vim
@@ -0,0 +1,32 @@
+" Vim indent file
+" Language: Chatito
+" Maintainer: ObserverOfTime <chronobserver@disroot.org>
+" Last Change: 2022 Sep 20
+
+if exists('b:did_indent')
+ finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetChatitoIndent()
+setlocal indentkeys=o,O,*<Return>,0#,!^F
+
+let b:undo_indent = 'setl inde< indk<'
+
+if exists('*GetChatitoIndent')
+ finish
+endif
+
+function GetChatitoIndent()
+ let l:prev = v:lnum - 1
+ if getline(prevnonblank(l:prev)) =~# '^[~%@]\['
+ " shift indent after definitions
+ return shiftwidth()
+ elseif getline(l:prev) !~# '^\s*$'
+ " maintain indent in sentences
+ return indent(l:prev)
+ else
+ " reset indent after a blank line
+ return 0
+ end
+endfunction