Usage.md

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-- Install any packages you want to use. For our example, switch to the package manager with "\]" and run:
-
-   ```
+## Package Installation
+Install any packages you want to use. For our example, switch to the package manager with `\]` and run:
+```julia
 add LowRankModels
 add DecisionTree
 ```
-- Congratulations! As an example, run:
 
-   ```
+## Quickstart
+Congratulations! As an example, run:
+
+```julia
 using ConML
 using LowRankModels # some algorithms for Construction and Reconstruction, use what you want
 using DecisionTree
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 learn(block)
 
 ```
-- To update the packages, navigate to the project folder and do a git pull. Afterwards, go to the julia package manager ("\]") and run "update".
+
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+## Update
+Navigate to the project folder and run `git pull`. Afterwards, go to the julia package manager (`\]`) and run `update`.
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