Docs to help with DShop's initial set up (#1020)

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docs/dshop/deployment/first-run.md

@@ -14,11 +14,35 @@ Enter the super-admin information on the onboarding page.
 
 ![Registration](images/firstrun-registration.png)
 
-Then configure the server:
+## Configure the server
 
 ![Configuration](images/firstrun-configuration.png)
 
-Congratulations! You have successfully set up the Dshop deployer which allows you (and anyone you give access to) to launch and administer Dshops.
+Use the following field entries as a guide to fill out this page:
+
+- If you are a merchant running a DShop in a **production** environment: 
+  - ```Ethereum Network```: Mainnet
+  - ```Root Domain```: The Domain name associated with your shop.
+  - ```Marketplace Listing ID```: This field has the format <chain_id>-<marketplace_contract_version>-<listing_seq>. Use 1-001-1 to set a _default_ value here.
+  - ```IPFS Gateway``` and ```IPFS API```: These two fields are dependent on the IPFS provider used to host your shop data. For example, if you choose to go with Infura, the fields will take on https://ipfs.infura.io/ and https://ipfs.infura.io:5001/ as values.
+  - ```Web3 PK```: this is optional, you can leave empty
+  - ```Notification Emails```: enter an email address
+  - ```Email Display Name```: choose a name
+  - ```Allow New User Signups```: don't forget to check that box otherwise you won't be able to create a shop
+
+- If you are running DShop in a **development** environment: 
+  - ```Ethereum Network```: Localhost
+  - ```Root Domain```: localhost
+  - ```Marketplace Listing ID```: 999-001-1
+  - ```IPFS Gateway```: http://localhost:8080
+  - ```IPFS API```: http://localhost:5002
+  - ```Web3 PK```: this is optional, you can leave empty
+  - ```Backend Public URL```: http://0.0.0.0:3000
+  - ```Notification Emails```: enter an email address
+  - ```Email Display Name```: choose a name
+  - ```Allow New User Signups```: don't forget to check that box otherwise you won't be able to create a shop
+
+Congratulations! You will now have successfully set up the Dshop deployer, which will allow you (and anyone you give access to) to launch and administer Dshops.
 
 ## Create your first shop