doc: cut v1.9.0 release

[andyzhangx]

What type of PR is this?
/kind feature

What this PR does / why we need it:
doc: cut v1.9.0 release

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Special notes for your reviewer:
/hold

git checkout -b cut-v1.9.0
vi README.md
cd charts/
sed -i 's/v1.8.0/v1.9.0/g' README.md
sed -i 's/: latest/: v1.9.0/g' latest/azuredisk-csi-driver/values.yaml
sed -i 's/: latest/: v1.9.0/g' latest/azuredisk-csi-driver/Chart.yaml
cd latest
helm package azuredisk-csi-driver
cd ..
cp latest/ v1.9.0 -r
cd v1.9.0/
helm package azuredisk-csi-driver
cd ../../
helm repo index charts --url=https://raw.githubusercontent.com/kubernetes-sigs/azuredisk-csi-driver/master/charts
cd ./deploy/
mkdir v1.9.0
cp *.yaml v1.9.0/
cd v1.9.0/
grep ":latest" ./* -R
sed -i 's/:latest/:v1.9.0/g' *.yaml
sed -i 's/latest/v1.9.0/g' csi-azuredisk-driver.yaml
cd ..
grep ":latest" ./* -R
sed -i 's/:latest/:v1.9.0/g' *.yaml
cd ../docs/
cp install-csi-driver-master.md install-csi-driver-v1.9.0.md
grep master install-csi-driver-v1.9.0.md
sed -i 's/master/v1.9.0/g' install-csi-driver-v1.9.0.md
cd ..
vi docs/install-azuredisk-csi-driver.md
git add charts/ deploy/ docs/
$git_commit
# second commit to revert back to latest version
sed -i 's/:v1.9.0/:latest/g' deploy/*.yaml
sed -i 's/: v1.9.0/: latest/g' charts/latest/azuredisk-csi-driver/values.yaml
sed -i 's/: v1.9.0/: latest/g' charts/latest/azuredisk-csi-driver/Chart.yaml
cd charts/latest
helm package azuredisk-csi-driver
$git_commit
git push origin cut-v1.9.0

Release note:

doc: cut v1.9.0 release

[k8s-ci-robot]

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