reset repo

docs/additional-material/git_workflow_scenarios/resetting-a-commit.md

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+# Reset a commit
+
+```reset``` is the command which can be used when we want to move the repository back to a previous commit, discarding any changes made after that commit.<br/>
+The main difference between resetting and reverting a commit is that git reset ```unstages a file and bring our changes back to the working directory``` 
+and git revert ```removes the commits from the remote repository```. <br/>
+
+```git reset``` can be achieved using following commands:
+- The following command will give summary of all the commits using following two parameters:
+   
+     - The first seven characters of the commit hash - this is what we need to refer to in our **reset** command.
+     - the commit message
+  
+   ```
+   git log --oneline
+   ```
+ 
+   
+- One can reset repository back to the specific commit using following command: <br />
+  ```git reset commithash```
+  where commithash being the first 7 characters of the commit hash we found in the log