changelog.md: Small fix to typo in changelog
Changed Documentnatino - > Documentation
@@ -8,7 +8,7 @@ they are listed here. Anything pre 0.2.x is ignored.
**1.7.0**
* Peripheral I/O support for Android Things
* Deprecation of node v0.10.x and 0.12.x
- * Documetnatino improvements
+ * Documentation improvements
**1.6.1**
* mraa-deinit bug fix
