Added Checkboxes to markdown

.gitignore

@@ -1,2 +1,7 @@
 opt
 vim/bundle
+vim/autoload/plug.vim
+vim/.netrwhist
+vim/plugged
+vim/spell
+zsh/zsh-autosuggestions

vim/after/syntax/markdown.vim

@@ -0,0 +1,16 @@
+" Vim syntax file
+" Add checkboxes to *.md files
+" source: https://gist.github.com/huytd/668fc018b019fbc49fa1c09101363397
+
+" Custom conceal
+syntax match todoCheckbox "\[\ \]" conceal cchar=☐
+syntax match todoCheckbox "\[[xX]\]" conceal cchar=☑
+
+syntax match todoCheckbox "- \[\ \]" conceal cchar=☐
+syntax match todoCheckbox "- \[[xX]\]" conceal cchar=☑
+
+hi def link todoCheckbox Todo
+
+highlight Conceal ctermbg=NONE ctermfg=NONE guibg=NONE guifg=NONE
+
+setlocal cole=1