mention Py 3.10 is required and tweak Markdown formatting

sdk/python/examples/README.md

@@ -1,36 +1,55 @@
 # zrok Pastebin
+
 This example shows the use of the zrok SDK spinning up a simple pastebin command.
 
-## Setup :wrench:
-Refer to the [setup guide](../../../docs/guides/self-hosting/self_hosting_guide.md) for details on setting up your zrok environment needed for this example.
+## Self-hosting Setup :wrench:
+
+You don't need this section if you're using hosted zrok from NetFoundry (https://api.zrok.io/).
+
+Refer to the [setup guide](../../../docs/guides/self-hosting/self_hosting_guide.md) for details on setting up your zrok
+environment if you're self-hosting zrok.
 
 ### Install Python Requirements
+
+The zrok SDK requires Python 3.10 or later.
+
 If you haven't already installed them, you'll need the dependent libraries used in the examples.
-  ```bash
-  pip install -r ../requirements
-  ```
+
+```bash
+pip install -r ./sdk/python/examples/requirements.txt
+```
 
 ## Running the Example :arrow_forward:
-This example contains a `copyto` server portion and `pastefrom` client portion. 
+
+This example contains a `copyto` server portion and `pastefrom` client portion.
 
 ### copyto
+
 The server portion expects to get data you want to send via stdin. It can be evoked by:
-```shell
+
+```bash
 echo "this is a cool test" | python pastebin.py copyto
 ```
+
 You should see some helpful info printed out to your terminal:
-```shell
+
+```bash
 access your pastebin using 'pastebin.py pastefrom vp0xgmknvisu'
 ```
+
 The last token in that line is your share token. We'll use that in the pastefrom command to access our data.
 
 ### pastefrom
+
 The `pastefrom` client expects the share token as an argument.
 If we envoke it using the same token as above:
-```shell
+
+```bash
 python pastebin.py pastefrom vp0xgmknvisu
 ```
+
 we see the data we had piped into the `copyto` server:
-```
+
+```text
 this is a cool test
-```
+```