Add changelog for Cloud v0.83.0 (linode#143)

Author: johnwcallahan

src/content/changelog/cloud-manager-0-83-0.md

@@ -0,0 +1,29 @@
+---
+title: Cloud Manager 0.83.0
+date: 2020-01-17T05:00:00.000Z
+version: 0.83.0
+changelog:
+  - Cloud Manager
+---
+
+### Added:
+
+- Longview:
+  - Apache
+  - MySQL
+  - Processes
+- "Show All" option on Domain Records
+- Ability to edit AXFR for slave Domains
+
+### Changed:
+
+- Hide Backups CTAs from restricted users
+- Update Longview graph colors
+- Support API requests for up to 200 entities at a time
+- Make One-Click apps visible to all users from primary navigation
+
+### Fixed:
+
+- Rounding in Longview line graphs
+- Add space to API Tokens HTML title
+- Allow rebooting from Rescue mode