Deprecate "Emergency Response: Covid-19 Projects" category

A survey of the contents of the category revealed that there was very little ongoing usage, and many of the recent
topics were actually about irrelevant subjects.

So the category has been deemed superfluous. All topics have been moved to the appropriate alternative category.

This is an interim measure until we can set up a redirect from the "Emergency Response: Covid-19 Projects" category URL
to the "Showcase" category in order to avoid breaking any links. Once that is done, the "Emergency Response: Covid-19
Projects" category will be deleted.

Author: per1234

content/categories/projects/covid-19-projects/README.md renamed to content/categories/forum-2005-2010-read-only/covid-19-projects/README.md

@@ -4,8 +4,8 @@
 
 | Group    | See | Reply | Create |
 | -------- | --- | ----- | ------ |
-| everyone | ✓   | ✓     | ✓      |
+| everyone | ✓   |       |        |
 
 ## Published At
 
-https://forum.arduino.cc/c/projects/covid-19-projects/88
+https://forum.arduino.cc/c/forum-2005-2010-read-only/covid-19-projects/88

content/categories/projects/covid-19-projects/_pins.md renamed to content/categories/forum-2005-2010-read-only/covid-19-projects/_pins.md

@@ -1,2 +1 @@
 - https://forum.arduino.cc/t/about-the-emergency-response-covid-19-projects-category/847528
-- https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/681304

content/categories/forum-2005-2010-read-only/covid-19-projects/_topics/about-the-emergency-response-covid-19-projects-category/1.md

@@ -0,0 +1,5 @@
+This category is no longer in use
+
+The topics previously located under this category have been moved to various alternative categories. For new topics, please select another category that is relevant to the subject of your topic.
+
+This category was dedicated to Arduino projects related to the pandemic.

content/categories/projects/covid-19-projects/_topics/about-the-emergency-response-covid-19-projects-category/README.md renamed to content/categories/forum-2005-2010-read-only/covid-19-projects/_topics/about-the-emergency-response-covid-19-projects-category/README.md

@@ -22,7 +22,6 @@
   - Interfacing w/ Software on the Computer
   - Showcase
   - Libraries
-  - Emergency Response: Covid-19 Projects
 - Official Hardware
   - Classic
     - Leonardo
@@ -178,6 +177,7 @@
     - Playground Wiki
   - Arduino SIM
   - Development
+  - Emergency Response: Covid-19 Projects
   - Emergency Response: Remote Learning
   - India
   - Intel®-based platforms