mixpanel: add

_data/categories.yml

@@ -1,5 +1,6 @@
 enabled: true
 names:
+  - Analytics
   - Ansible
   - Apps
   - CLI

mixpanel.md

@@ -0,0 +1,28 @@
+---
+title: Mixpanel
+layout: 2017/sheet
+category: Analytics
+---
+
+### Identify
+
+```js
+mixpanel.identify('284')
+mixpanel.people.set({ $email: 'hi@gmail.com' })
+```
+
+```js
+// Set common properties
+mixpanel.register({ age: 28, gender: 'male' })
+```
+
+### Track events
+
+```js
+mixpanel.track('Login success')
+mixpanel.track('Search', { query: 'cheese' })
+```
+
+### References
+
+* <https://mixpanel.com/help/reference/javascript>