docs: reference to request deprecation and alternative libs

Author: analog-nico

README.md

@@ -12,8 +12,9 @@
 
 # Deprecated!
 
-As of Feb 11th 2020, [`request`](https://github.com/request/request) is fully deprecated. No new changes are expected to land. In fact, none have landed for some time.  
-This package is also deprecated because it depends on `request`.
+As of Feb 11th 2020, [`request`](https://github.com/request/request) is fully deprecated. No new changes are expected to land. In fact, none have landed for some time. This package is also deprecated because it depends on `request`.
+
+Fyi, here is the [reasoning of `request`'s deprecation](https://github.com/request/request/issues/3142) and a [list of alternative libraries](https://github.com/request/request/issues/3143).
 
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