Release notes and Readme update (#872)

Co-authored-by: Tyler Ruppert <{ID}+{username}@users.noreply.github.com>

README.md

@@ -52,16 +52,16 @@ We have active, helpful communities on Twitter and Telegram.
 See [Release procedure](CONTRIBUTING.md#release-procedure) for more information about the release model.
 
 ## Active Networks
-* Testnet `paloma-testnet-15` (January 20, 2023) - current tag v1.0.0
-* Mainnet `messenger` (February 2, 2023) - current tag: v1.0.0
+* Testnet `paloma-testnet-15` (January 20, 2023) - current tag v1.2.0
+* Mainnet `messenger` (February 2, 2023) - current tag: v1.2.0
 
 
 ## Join an active Network
 
 > #### Note:
-> Some have seen errors with GLIBC version differences with the downloaded binaries for v1.0.0. This is caused by a difference in the libraries of the host that built the binary and the host running the binary.
+> Some have seen errors with GLIBC version differences with the downloaded binaries for v1.2.0. This is caused by a difference in the libraries of the host that built the binary and the host running the binary.
 >
-> We did not find this bug in time to fix it in the v1.0.0 release. Instead there is a workaround. If you experience these errors, please pull down the code and build it, rather than downloading the prebuilt binary
+> If you experience these errors, please pull down the code and build it, rather than downloading the prebuilt binary
 
 
 ### Install the correct version of libwasm
@@ -78,7 +78,7 @@ rm -r ~/.paloma/data/wasm/cache
 
 ```
 shell
-wget -O - https://github.com/palomachain/paloma/releases/download/v1.0.0/paloma_Linux_x86_64.tar.gz | \
+wget -O - https://github.com/palomachain/paloma/releases/download/v1.2.0/paloma_Linux_x86_64.tar.gz | \
  sudo tar -C ~/ -xvzf - palomad
 sudo chmod +x /usr/local/bin/palomad
 ```
@@ -89,7 +89,7 @@ sudo chmod +x /usr/local/bin/palomad
 shell
 git clone https://github.com/palomachain/paloma.git
 cd paloma
-git checkout v1.0.0
+git checkout v1.2.0
 make build
 sudo mv ./build/palomad /usr/local/bin/palomad
 ```

RELEASE_NOTES.md

@@ -0,0 +1,9 @@
+## What's Changed
+* Fixing broken v1.1.0 version by @ToasterTheBrave in https://github.com/palomachain/paloma/pull/868
+* remove double https by @rootedbox in https://github.com/palomachain/paloma/pull/870
+* Just-in-time valset updates by @ToasterTheBrave in https://github.com/palomachain/paloma/pull/871
+
+## New Contributors
+* @rootedbox made their first contribution in https://github.com/palomachain/paloma/pull/870
+
+**Full Changelog**: https://github.com/palomachain/paloma/compare/v1.1.0...v1.2.0