Updated twitter and facebook accounts @microsoft365dev (SharePoint#5330)

* Update README.md

Updated twitter account as the Microsoft made some changes to their social channels. For the latest news and learning on #Microsoft365dev follow our twitter accounts @microsoft365dev
They will stop posting to #OfficeDev March 31, 2020.

* Update toc.yml

Microsoft made some changes to their social channels. For the latest news and learning on #Microsoft365dev follow our twitter and facebook accounts @microsoft365dev
They will stop posting to #OfficeDev March 31, 2020.

* Update roadmap.md

Microsoft made some changes to their social channels. For the latest news and learning on #Microsoft365dev follow our twitter and facebook accounts @microsoft365dev
They will stop posting to #OfficeDev March 31, 2020.

* Update community.md

Microsoft made some changes to their social channels. For the latest news and learning on #Microsoft365dev follow our twitter and facebook accounts @microsoft365dev
They will stop posting to #OfficeDev March 31, 2020.

* Update overview-extensions.md

Microsoft made some changes to their social channels. For the latest news and learning on #Microsoft365dev follow our twitter and facebook accounts @microsoft365dev
They will stop posting to #OfficeDev March 31, 2020.

Co-authored-by: Vesa Juvonen <[email protected]>

Author: PrasadKasireddy

README.md

@@ -12,7 +12,7 @@ Feel free to use [Issues]((https://github.com/SharePoint/sp-dev-docs/issues)) li
 
 We’ll also monitor [#spfx](http://sharepoint.stackexchange.com/tags/spfx/), [#spfx-webparts](http://sharepoint.stackexchange.com/tags/spfx-webparts/), and [#spfx-tooling](http://sharepoint.stackexchange.com/tags/spfx-tooling/) at [SharePoint StackExchange](http://sharepoint.stackexchange.com/) as well.
 
-You can also tweet / follow [@officedev](https://twitter.com/officedev) or [@officedevpnp](https://twitter.com/officedevpnp).
+You can also tweet / follow [@Microsoft365Dev](https://twitter.com/Microsoft365Dev) or [@officedevpnp](https://twitter.com/officedevpnp).
 
 ## SharePoint Framework Releases
 
@@ -94,7 +94,7 @@ You can also tweet / follow [@officedev](https://twitter.com/officedev) or [@off
 
 To keep track of improvements to the Office 365 Framework, please take a look at:
 
-* [@SharePoint](https://twitter.com/sharepoint), [@OfficeDev](https://twitter.com/officedev) and [@OfficeDevPnP](https://twitter.com/officedevpnp) on Twitter
+* [@SharePoint](https://twitter.com/sharepoint), [@Microsoft365Dev](https://twitter.com/Microsoft365Dev) and [@OfficeDevPnP](https://twitter.com/officedevpnp) on Twitter
 * [Office Developer Blog](https://developer.microsoft.com/en-us/office/blogs/)
 
 Provide Feedback:
@@ -111,4 +111,4 @@ The SharePoint Framework is now generally available at Office 365.
 
 ## Have Fun
 
-We look forward to seeing what you build! Please tweet us at @OfficeDev, @OfficeDevPnP or @SharePoint with the #SPFx tag!
+We look forward to seeing what you build! Please tweet us at @Microsoft365Dev, @OfficeDevPnP or @SharePoint with the #SPFx tag!

docs/community/community.md

@@ -15,9 +15,9 @@ The SharePoint Development Community (also known as the SharePoint PnP community
 
 - [SharePoint Developer Blog](https://developer.microsoft.com/en-us/office/blogs/) - Latest developer news around SharePoint and Office 365
 - [SharePoint Developer Videos](https://aka.ms/spdev-videos) - Latest guidance videos, training videos, and community call recordings
-- [OfficeDev Twitter](https://twitter.com/officedev) - Official communication channel for SharePoint and Office 365 developer topics
+- [Microsoft365Dev Twitter](https://twitter.com/Microsoft365Dev) - Official communication channel for SharePoint, Office 365, Windows 10 and Enterprise Mobility + Security developer topics
 - [OfficeDevPnP Twitter](https://twitter.com/officedevpnp) - Community account for SharePoint and Office 365 developer topics
-- [OfficeDev Facebook](https://www.facebook.com/OfficeDev/) - Official communication channel for SharePoint and Office 365 developer topics
+- [Microsoft365Dev Facebook](https://www.facebook.com/Microsoft365Dev) - Official communication channel for SharePoint, Office 365, Windows 10 and Enterprise Mobility + Security developer topics
 - [OfficeDevPnP Facebook](https://www.facebook.com/OfficeDevPnP/) - Community account for SharePoint and Office 365 developer topics
 
 ## GitHub

docs/spfx/extensions/overview-extensions.md

@@ -37,7 +37,7 @@ You can build extensions alongside common scripting frameworks, such as AngularJ
 ## Stay up to date
 To keep track of improvements to the SharePoint Framework, including updates to extensions, see the following:
 
-* [@SharePoint](https://twitter.com/sharepoint) and [@OfficeDev](https://twitter.com/officedev) on Twitter
+* [@SharePoint](https://twitter.com/sharepoint) and [@Microsoft365Dev](https://twitter.com/Microsoft365Dev) on Twitter
 * [Office Developer Blog](https://developer.microsoft.com/en-us/office/blogs/)
 
 ## Provide feedback 

docs/spfx/roadmap.md

@@ -103,5 +103,5 @@ The following sections list older items that have already shipped.
 ## See also
 
 - [dev.office.com blog](https://dev.office.com/blogs)
-- [OfficeDev Twitter account](https://twitter.com/officedev)
+- [Microsoft365Dev Twitter account](https://twitter.com/Microsoft365Dev)
 - [SharePoint Framework Overview](sharepoint-framework-overview.md)