Merge pull request #886 from Xtema/fix/fix-helm-upgrade-doc

Fix typo on Helm Upgrade command with arguments

Author: jbw976

content/master/software/upgrade.md

@@ -56,5 +56,5 @@ with the upgrade command.
 
 For example, to maintain the original image registry use 
 ```shell 
-helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane `--set 'args={"--registry=index.docker.io"}'
+helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane --set 'args={"--registry=index.docker.io"}'
 ```

content/v1.17/software/upgrade.md

@@ -56,5 +56,5 @@ with the upgrade command.
 
 For example, to maintain the original image registry use 
 ```shell 
-helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane `--set 'args={"--registry=index.docker.io"}'
+helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane --set 'args={"--registry=index.docker.io"}'
 ```

content/v1.18/software/upgrade.md

@@ -56,5 +56,5 @@ with the upgrade command.
 
 For example, to maintain the original image registry use 
 ```shell 
-helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane `--set 'args={"--registry=index.docker.io"}'
+helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane --set 'args={"--registry=index.docker.io"}'
 ```

content/v1.19/software/upgrade.md

@@ -56,5 +56,5 @@ with the upgrade command.
 
 For example, to maintain the original image registry use 
 ```shell 
-helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane `--set 'args={"--registry=index.docker.io"}'
+helm upgrade crossplane --namespace crossplane-system crossplane-stable/crossplane --set 'args={"--registry=index.docker.io"}'
 ```