Update README to reflect required TF and current provider version

Due to some changes in go-plugin we needed to bump the required TF
version. Also did a vanity update to the provider example to reflect the
latest release.

README.md

@@ -21,7 +21,7 @@ For general information about Terraform, visit the [official website][3] and the
 
 # Using the Provider
 
-The current version of this provider requires Terraform v0.10.0 or higher to
+The current version of this provider requires Terraform v0.10.2 or higher to
 run.
 
 Note that you need to run `terraform init` to fetch the provider before
@@ -49,7 +49,7 @@ The syntax is as follows:
 
 ```hcl
 provider "vsphere" {
-  version = "~> 0.1"
+  version = "~> 0.2"
   ...
 }
 ```