#What is Markdown?
A few marks decidethe shape of the document.
Markdown is a way of writing where marks inside the text decide its shape. A # at the start of a line makes a heading; a - makes a bullet. That is the whole idea.
Because there is so little to learn, you can stay on the writing. The file is plain text, so it opens anywhere, and it pastes straight into GitHub or most publishing sites. Documents that ChatGPT and Claude hand back are usually written this way too.
##What is Markdown?
What you type, and what you see.
On the left, the characters you type. On the right, how Monoshiri shows them. These two are the same place — there is no preview pane to switch to.
Headings
The number of # is the depth. More of them means a quieter colour and a smaller size.
What you type
# 週報 ## 今週やったこと ### 見積もり
How it looks
Bullets
A - at the start of the line. Two spaces of indent nests it, and the mark changes colour per level.
What you type
- 見積もりを送った
- 先方の確認待ち
- 金額は据え置き How it looks
Numbered
Start with 1.. The numbers come out as you wrote them.
What you type
1. 下書き 2. 見直し 3. 送付
How it looks
To-dos
- [ ] for an empty box, - [x] for a done one. The box is clickable.
What you type
- [x] 請求書を出す - [ ] 打ち合わせの日程
How it looks
Emphasis
** for bold, * for italic, ~~ for a strikethrough. The marks stay visible and take on colour.
What you type
金額は **据え置き**、条件は *要相談*、納期は ~~来週~~。
How it looks
Quote
A > at the start of the line. For someone else’s words, or a line worth coming back to.
What you type
> 最初のリリースは小さく。
How it looks
Divider
A line with just ---. For where the subject changes.
What you type
ここまで --- ここから
How it looks
Inline code
Wrap it in `. For command names and file names.
What you type
`npm run build` を実行します。
How it looks
Code block
Fence it with lines of ` . Name the language after the fence for colour, and add a file name as js:app.js.
What you type
```js:app.js const n = 1; console.log(n); ```
How it looks
Links
[name](URL). Once finished, only the name remains and clicking opens it. Put the cursor beside it to edit the address again.
What you type
[請求書のひな形](https://example.com)
How it looks
Images
. Dropping an image into the editor is enough — it goes to ~/images/ and this line is written for you.
What you type
How it looks
Attachments
Drop a PDF or a spreadsheet and it lands in ~/files/ as a chip. PDFs open inside the app.
What you type
[見積書.pdf](~/files/見積書.pdf)
How it looks
Tables
Columns are split by pipes. Build one from / and type straight into the cells.
What you type
| 項目 | 状況 | | --- | --- | | 見積もり | 送付済み |
How it looks
Table alignment
Add a : to the --- row. :--- is left, ---: is right, :---: is centred.
What you type
| 品名 | 数量 | | :--- | ---: | | りんご | 12 | | みかん | 300 |
How it looks
Line break in a cell
A Markdown table holds one row per line, so use <br>. Shift+Enter types it for you.
What you type
| 項目 | 覚え書き | | --- | --- | | 見積 | 送付済み<br>要確認 |
How it looks
Folds
<details> with <summary>. Put long passages away. They fold the same way on GitHub and elsewhere.
What you type
<details> <summary>長い話は畳んでおく</summary> 中身 </details>
How it looks
Diagrams
Fence it with `mermaid and the diagram is drawn as written — flowcharts, sequences, pie charts.
What you type
```mermaid graph LR A[下書き] --> B[見直し] B --> C[送付] ```
How it looks
Formulas
$ around it for inline maths, lines of $$ around it for a block.
What you type
$$ E = mc^2 $$
How it looks
Footnotes
Put [^1] in the text and [^1]: the note on its own line. Clicking either one jumps to the other.
What you type
本文に注を付ける[^1] [^1]: ここが注の中身。
How it looks
You can write without learning it.
In Monoshiri, / at the start of a line offers tables and folds from a list. The marks come to you as you go.
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