submit git03

students/caiocezart/exercises/git03/README.md

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+## Secrets (c01-git04)
+
+Perform the following commands:
+1. In the same repository of the previous exercise:
+2. Add a file called `my_env.txt` that contains
+    ```
+    SERVICE_NAME=account-management
+    ENVIRONMENT=prod
+    PASSWORD=pass1234
+    ```
+1. Commit it to your local repository
+2. Check the log with `git log`
+
+**Questions**
+
+1. Let's suppose you remotely pushed the `my_env.txt` file above. A colleague asks you to remove this information from Git. What's your colleague worried about?
+2. If you modify the file in your workspace, then commit and push it, will it be enough to erase this password information from the repository? (It's not). Why?
+3. If you delete the file and push it, then create a new one with the rest of the information, is it enough? (It's not). Why?
+4. How to fix this? How do you remove something from Git history when it is in the remote repository?
+5. Which commands would you use? Explain what the command does.
+
+## Submit a PR with the following files
+
+> Remember to follow the instructions on [how to submit a PR here](/README.md#exercises)
+
+- **README.md**: copy from file [ANSWER.md](ANSWER.md), answering the questions above. Include details and commands used.

students/caiocezart/exercises/git03/config.json

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+{
+  "version": "v1.0.0"
+}

students/caiocezart/exercises/git03/my_env.txt

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+SERVICE_NAME=account-management
+ENVIRONMENT=prod
+PASSWORD=pass1234