# Markdown Demo

note: Just a test

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## External 1.1

Content 1.1

```javascript
var foo = "bar"
```

Note: This will only appear in the speaker notes window.

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## External 1.2

Content 1.2

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## External 2

Content 2.1

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## External 3.1

Content 3.1

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## External 3.2

Content 3.2

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## External 3.3 (Image)

![External Image](https://s3.amazonaws.com/static.slid.es/logo/v2/slides-symbol-512x512.png)

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## External 3.4 (Math)

`\[ J(\theta_0,\theta_1) = \sum_{i=0} \]`