Merge pull request EOSIO#9861 from EOSIO/nksanthosh-patch-1

Bump version to 2.1.0-rc2, updates to Readme and docs pages.

Author: nksanthosh

README.md

@@ -75,6 +75,11 @@ brew remove eosio
 
 ### Ubuntu Linux:
 
+#### Ubuntu 20.04 Package Install
+```sh
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio_2.1.0-rc2-ubuntu-20.04_amd64.deb
+sudo apt install ./eosio_2.1.0-rc2-ubuntu-20.04_amd64.deb
+```
 #### Ubuntu 18.04 Package Install
 ```sh
 wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio_2.1.0-rc2-ubuntu-18.04_amd64.deb
@@ -92,11 +97,17 @@ sudo apt remove eosio
 
 ### RPM-based (CentOS, Amazon Linux, etc.):
 
-#### RPM Package Install
+#### RPM Package Install CentOS 7
 ```sh
 wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio-2.1.0-rc2.el7.x86_64.rpm
 sudo yum install ./eosio-2.1.0-rc2.el7.x86_64.rpm
 ```
+#### RPM Package Install CentOS 8
+```sh
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio-2.1.0-rc2.el8.x86_64.rpm
+sudo yum install ./eosio-2.1.0-rc2.el8.x86_64.rpm
+```
+
 #### RPM Package Uninstall
 ```sh
 sudo yum remove eosio

docs/00_install/00_install-prebuilt-binaries.md

@@ -22,16 +22,20 @@ brew remove eosio
 ```
 
 ### Ubuntu Linux:
-
+#### Ubuntu 20.04 Package Install
+```sh
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio_2.1.0-rc2-ubuntu-20.04_amd64.deb
+sudo apt install ./eosio_2.1.0-rc2-ubuntu-20.04_amd64.deb
+```
 #### Ubuntu 18.04 Package Install
 ```sh
-wget https://github.com/eosio/eos/releases/download/v2.1.0-rc1/eosio_2.1.0-rc1-ubuntu-18.04_amd64.deb
-sudo apt install ./eosio_2.1.0-rc1-ubuntu-18.04_amd64.deb
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio_2.1.0-rc2-ubuntu-18.04_amd64.deb
+sudo apt install ./eosio_2.1.0-rc2-ubuntu-18.04_amd64.deb
 ```
 #### Ubuntu 16.04 Package Install
 ```sh
-wget https://github.com/eosio/eos/releases/download/v2.1.0-rc1/eosio_2.1.0-rc1-ubuntu-16.04_amd64.deb
-sudo apt install ./eosio_2.1.0-rc1-ubuntu-16.04_amd64.deb
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio_2.1.0-rc2-ubuntu-16.04_amd64.deb
+sudo apt install ./eosio_2.1.0-rc2-ubuntu-16.04_amd64.deb
 ```
 #### Ubuntu Package Uninstall
 ```sh
@@ -40,10 +44,15 @@ sudo apt remove eosio
 
 ### RPM-based (CentOS, Amazon Linux, etc.):
 
-#### RPM Package Install
+#### RPM Package Install CentOS 7
+```sh
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio-2.1.0-rc2.el7.x86_64.rpm
+sudo yum install ./eosio-2.1.0-rc2.el7.x86_64.rpm
+```
+#### RPM Package Install CentOS 8
 ```sh
-wget https://github.com/eosio/eos/releases/download/v2.1.0-rc1/eosio-2.1.0-rc1.el7.x86_64.rpm
-sudo yum install ./eosio-2.1.0-rc1.el7.x86_64.rpm
+wget https://github.com/eosio/eos/releases/download/v2.1.0-rc2/eosio-2.1.0-rc2.el8.x86_64.rpm
+sudo yum install ./eosio-2.1.0-rc2.el8.x86_64.rpm
 ```
 #### RPM Package Uninstall
 ```sh