Fixed broken links (SharePoint#2115)

Author: thechriskent

docs/solution-guidance/localization-sharepoint-add-in.md

@@ -67,15 +67,15 @@ Related links
 =============
 
 - [Localize SharePoint Add-ins (MSDN Article)](https://msdn.microsoft.com/en-us/library/fp179919(v=office.15).aspx)
-- [Localize the add-in web, host web, and remote components of an add-in  (Office Dev GitHub sample)](https://github.com/SharePoint/SharePoint-Add-in-Localization)
+- [Localize the add-in web, host web, and remote components of an add-in  (Office Dev GitHub sample)](https://github.com/OfficeDev/SharePoint-Add-in-Localization)
 - Guidance articles at [http://aka.ms/OfficeDevPnPGuidance](http://aka.ms/OfficeDevPnPGuidance "Guidance Articles")
 - References in MSDN at [http://aka.ms/OfficeDevPnPMSDN](http://aka.ms/OfficeDevPnPMSDN "References in MSDN")
 - Videos at [http://aka.ms/OfficeDevPnPVideos](http://aka.ms/OfficeDevPnPVideos "Videos")
 
 Related PnP samples
 ===================
 
-- [VariationsExtensions.cs class (O365 PnP Sample)](https://github.com/SharePoint/PnP-Sites-Core/tree/master/Core/OfficeDevPnP.Core/AppModelExtensions/VariationExtensions.cs)
+- [VariationsExtensions.cs class (O365 PnP Sample)](https://github.com/SharePoint/PnP-Sites-Core/blob/master/Core/OfficeDevPnP.Core/Extensions/VariationExtensions.cs)
 - Samples and content at [http://aka.ms/OfficeDevPnP](http://aka.ms/OfficeDevPnP)
 
 Applies to