client: docker-finance.d: fetch: update/cleanup comments

client/docker-finance.d/container/fetch/fetch.yaml.in

@@ -34,7 +34,7 @@
 #          Where :subaccount-2:... (and successive subaccounts) are optional
 #          (the final subaccount in the chain being wallet-name (per address)).
 #
-#   2. For cryptocurrency assets:
+#   2. For asset prices:
 #
 #        - Mobula:
 #
@@ -61,12 +61,14 @@
 #       * For ethereum-based chains:
 #
 #         - As of now, you *MUST* use an API key.
-#           Generate your API key at etherscan.io
+#           Generate your API key at etherscan.io but take note
+#           of what chain is supported by which free/paid plan.
 #
-#         - Use "etherscan" as the blockchain API, as its
-#           unified API is used for all ethereum-based chains.
+#         - Use "etherscan/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+#           as the blockchain API, replacing X with the API key,
+#           as its unified API is used for all ethereum-based chains.
 #
-#       * For algorand/tezos: currently no API key is required.
+#       * For algorand/tezos: currently, no API key is required.
 #
 #
 #   5. Feel free to delete any unused accounts/subaccounts as needed.
@@ -89,7 +91,6 @@ version: @DOCKER_FINANCE_VERSION@
     price:
       mobula:
         # NOTE: visit mobula.io for free API key
-        #key: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
         key:
         asset:
           - "algorand/ALGO"
@@ -161,8 +162,8 @@ version: @DOCKER_FINANCE_VERSION@
           #- "usd-coin/USDC"
 
     account:
-      # When creating a Gemini API key, create a key with only the "Auditor" role
       gemini:
+        # NOTE: When creating a Gemini API key, create a key with only the "Auditor" role
         key: "account-XXXXXXXXXXXXXXXXXXXX"
         secret: "XXXXXXXXXXXXXXXXXXXXXXXXXXXX"
         # Use this format to fetch all supported symbols/pairs