add a file to teach basics

basics.md

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+Alright so you have installed the repository. Good job 🎉
+now let's began with writing some code-?
+
+**here's how to define a `variable`**
+Variable names can be arbitrarily long
+```
+
+```
+
+to **print** these, this is what you do
+```
+
+```
+
+you can't use variables with these names-
+```
+
+
+
+
+
+
+
+
+
+
+```
+
+**wanna add subtract multiply divide differentiate exponent or any mathematical funtion?**
+do it this way
+```
+
+
+
+
+
+
+```
+
+also you can define if you want to use BODMAS or PEMDAS using **modules** like this
+```
+
+
+
+```
+
+**asking the user for input**
+
+if you want a custom value for anything given by the user you can use this built in funtion to do so-
+```
+
+```
+
+**Comments**
+
+as your programs gets bigger chances are you will have some trouble finding some code here and that - comments can fix that - you can write as much as comments as you want without it being excecuted like this
+
+```
+
+
+
+```
+
+here are some **practice exercises** for you to get started with the basics
+
+1. write a program to get an input from a user and welcome them
+2. write a program to add 1+1
+3. what will be the output of the following:
+```
+
+
+
+
+
+
+
+```
+
+**solutions:**
+
+program 1-
+```
+
+
+
+```
+
+program 2-
+```
+
+
+
+```
+OR
+```
+
+
+
+
+
+```
+
+output for program 3 -
+```
+
+```
+
+more features coming soon I hope you enjoyed using nocode!