wiki: Switch Oxygen Updater download URL from Google Play to GitHub

Change-Id: Iab8348abb9abc0d84219c71eeafa7459c172bb3d

Author: luk1337

_includes/templates/device_specific/firmware_update_oneplus_fastbootd.md

@@ -1,9 +1,9 @@
 {% include alerts/warning.html content="These instructions are NOT for carrier branded variants." %}
 
 {%- if device.before_install.instructions == "needs_specific_android_fw" and device.before_install.version -%}
-1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- else -%}
-1. Download the latest full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- endif %}
 2. Extract stock ROM using [payload-dumper-go](https://github.com/ssut/payload-dumper-go/releases/latest)
 3. Boot up LineageOS recovery

_includes/templates/device_specific/firmware_update_oplus_fastbootd.md

@@ -1,9 +1,9 @@
 {% include alerts/warning.html content="These instructions are NOT for carrier branded variants." %}
 
 {%- if device.before_install.instructions == "needs_specific_android_fw" and device.before_install.version -%}
-1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- else -%}
-1. Download the latest full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- endif %}
 2. Extract stock ROM using [payload-dumper-go](https://github.com/ssut/payload-dumper-go/releases/latest)
 3. Boot up LineageOS recovery

_includes/templates/device_specific/firmware_update_oplus_sm8250.md

@@ -1,9 +1,9 @@
 {% include alerts/warning.html content="These instructions are NOT for carrier branded variants." %}
 
 {%- if device.before_install.instructions == "needs_specific_android_fw" and device.before_install.version -%}
-1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest **Android {{ device.before_install.version }}** full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- else -%}
-1. Download the latest full stock ROM update from [Oxygen Updater](https://play.google.com/store/apps/details?id=com.arjanvlek.oxygenupdater)
+1. Download the latest full stock ROM update from [Oxygen Updater](https://github.com/oxygen-updater/oxygen-updater/releases/latest)
 {%- endif %}
 2. Extract stock ROM using [payload-dumper-go](https://github.com/ssut/payload-dumper-go/releases/latest)
 3. Boot up LineageOS recovery