Update README.md

Fix the syntax error accidentally introduced by the code suggestion
feature on GitHub.

Author: minamijoyo

README.md

@@ -107,7 +107,7 @@ TFMIGRATE_EXEC_PATH=terragrunt tfmigrate $OTHEROPTIONS
 
 #### With dynamic state
 
-As tfmigrate uses the local backend for planning, some command line flags for the remote state backend cannot be used. If you are leveraging terragrunt's [dynamic state generation](https://terragrunt.gruntwork.io/docs/reference/config-blocks-and-attributes/#remote_state), the `remote_state` block must include a `generate` block.```
+As tfmigrate uses the local backend for planning, some command line flags for the remote state backend cannot be used. If you are leveraging terragrunt's [dynamic state generation](https://terragrunt.gruntwork.io/docs/reference/config-blocks-and-attributes/#remote_state), the `remote_state` block must include a `generate` block.
 
 ```hcl
 remote_state {