Update runtime files

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