some updates in readme

README.md

@@ -17,7 +17,7 @@
 
 To use `xexe`, you will need to have credentials for the `xe.com` API. Specifically, you need an account id and it's matching api key.
 
-To write into the DWH, you will also need to pass credentials to connect it to it.
+To write into the DWH, you will also need to pass credentials to connect to it.
 
 To set up your environment, you should create a `.env` file and place it in `~/.xexe/.env`. You will have to run `xexe` as the right user to ensure the `.env` file is found. You can use the `.env-example` file as a reference. We also recommend running `chmod 400` or `chmod 600` on it for safety.
 
@@ -34,7 +34,7 @@ To be able to write rates into the DWH, take these points into consideration:
 - `xexe` should run with a user that has permission to write into `dwh/sync_xedotcom_currencies` and to create tables. It will create the right tables if it can't find them.
 - These details are hardcoded in the `constants` module. You might want to refactor them into run-time configuration options if you find yourself having to change them often.
 
-### Using
+### General Usage
 
 Remember to activate the project virtual environment.
 
@@ -134,6 +134,27 @@ A few more details:
 - Trying to place an `end-date` before a `start-date` will cause an exception.
 - Running with the option `--dry-run` will run against a mock of the xe.com API. Format will be valid, but all rates will be fixed. This is for testing purposes.
 
+### Deploying for Superhog infra
+
+This tool was made specifically to feed our DWH. These are the steps to perform to deploy it from scratch.
+
+- Setup
+  - Prepare a Linux VM.
+  - Run the steps described in this readme in sections:
+  - `How to Use the tool > Install`
+  - `How to Use the tool > Set up credentials`
+  - `How to Use the tool > DWH pre-requisites`
+- Schedule
+  - Finally, schedule the execution in the Linux VM to fit your needs.
+  - Specifics are up to you and your circunstances.
+  - A general pattern would be to create a little bash script that calls the tool with the right parameters on it.
+  - Remember to use the `--ignore-warnings` flag if necessary to allow large, automated runs without manually interaction.
+- Backfilling
+  - If you are loading rates for the first time, you might need to backfill long periods of time manually at first.
+  - The tool is flexible enough. You can probably figure out the right commands by taking a look at `How to Use the tool > General Usage`
+  - Be careful since you might hit consumption limits set by xe.com.
+
+
 ## Testing
 
 This CLI app has three groups of tests: