docs: polish and update

content/notes/updating.md

@@ -0,0 +1,34 @@
+---
+title: "Updating"
+aliases:
+- update
+---
+
+Haven't updated Quartz in a while and want all the cool new optimizations? On Unix/Mac systems you can run the following command for a one-line update! This command will show you a log summary of all commits since you last updated, press `q` to acknowledge this. Then, it will show you each change in turn and press `y` to accept the patch or `n` to reject it. Usually you should press `y` for most of these unless it conflicts with existing changes you've made! 
+
+```shell
+make update
+```
+
+Or, if you don't want the interactive parts and just want to force update your local garden (this assumed that you are okay with some of your personalizations been overriden!)
+
+```shell
+make update-force
+```
+
+Or, manually checkout the changes yourself.
+
+> ⚠️ **WARNING** ⚠️
+>
+> If you customized the files in `data/`, or anything inside `layouts/`, your customization may be overwritten!
+> Make sure you have a copy of these changes if you don't want to lose them.
+
+
+```shell
+# add Quartz as a remote host
+git remote add upstream git@github.com:jackyzha0/quartz.git
+
+# index and fetch changes
+git fetch upstream
+git checkout -p upstream/hugo -- layouts .github Makefile assets/js assets/styles/base.scss assets/styles/darkmode.scss config.toml data 
+```