Docs/add instructions

README.md

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 # [Rustlings](https://rustlings.rust-lang.org) 🦀
 
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 Small exercises to get you used to reading and writing [Rust](https://www.rust-lang.org) code - _Recommended in parallel to reading [the official Rust book](https://doc.rust-lang.org/book) 📚️_
 
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 Visit the **website** for a demo, info about setup and more:
 
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 ## ➡️ [rustlings.rust-lang.org](https://rustlings.rust-lang.org) ⬅️
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+## Quick start
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+### Installation
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+Installing Rustlings
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+The following command will download and compile Rustlings:
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+``` cargo install rustlings ```
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+### Initialization
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+After installing Rustlings, run the following command to initialize the rustlings/ directory:
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+``` bash
+rustlings init 
+```
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+Now, go into the newly initialized directory and launch Rustlings for further instructions on getting started with the exercises:
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+``` 
+cd rustlings
+ ```
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+
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+### Starting Rustlings
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+    rustlings
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+
+
+## Get Back To Practice
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+Navigate to Rsustlings Directory:
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+``` 
+cd rustlings 
+```
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+then run:
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+```
+ rustlings
+  ```
+
+Happy Learning!