Restored deleted files from Sprint-1 to fix accidental changes

Author: ahmadehsas

Sprint-3/Sprint-1/1-key-exercises/1-count.js

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+let count = 0;
+
+count = count + 1;
+
+// Line 1 is a variable declaration, creating the count variable with an initial value of 0
+// Describe what line 3 is doing, in particular focus on what = is doing

Sprint-3/Sprint-1/readme.md

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+# 🧭 Guide to Week 1 exercises
+
+> https://programming.codeyourfuture.io/structuring-data/sprints/1/prep/
+
+> [!TIP]
+> You should always do the prep work _before_ attempting the coursework.
+> The prep shows you _how_ to do the coursework.
+> There is often a step by step video you can code along with too.
+> Do the prep.
+
+This README will guide you through the different sections for this week.
+
+## 1 Exercises
+
+In this section, you'll have a short program and task. Some of the syntax may be unfamiliar - in this case, you'll need to look things up in documentation.
+
+https://developer.mozilla.org/en-US/docs/Web/JavaScript
+
+## 2 Errors
+
+In this section, you'll need to go to each file in `errors` directory and run the file with node to check what the error is. Your task is to interpret the error message and explain why it occurs. The [errors documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors) will help you figure out the solution.
+
+## 3 Interpret
+
+In these tasks, you have to interpret a slightly larger program with some syntax / operators / functions that may be unfamiliar.
+
+You must use documentation to make sense of anything unfamiliar - learning how to look things up this way is a fundamental part of being a developer!
+
+You can also use `console.log` to check the value of different variables in the code.
+
+https://developer.mozilla.org/en-US/docs/Web/JavaScript
+
+## 4 Explore - Stretch 💪
+
+This stretch activity will get you to start exploring new concepts and environments by yourself. It will do so by prompting you to reflect on some questions.