added tags for ongoing tutorials

Author: rby90

README.md

@@ -5,7 +5,7 @@ A list of C tutorials that work through the creation of small and or large proje
 ## Books
 
 * [Build Your Own Lisp](http://www.buildyourownlisp.com/)
-* [Crafting Interpreters](http://www.craftinginterpreters.com/)
+* [Crafting Interpreters](http://www.craftinginterpreters.com/) [In-progress]
 * [The little book about OS development](https://littleosbook.github.io/)
 * [Operating Systems: From 0 to 1](https://tuhdo.github.io/os01/)
 * [Beej's Guide to Network Programming](http://beej.us/guide/bgnet/html/multi/index.html)
@@ -58,7 +58,7 @@ A list of C tutorials that work through the creation of small and or large proje
     * [Part 22 - Standard Library](http://peter.michaux.ca/articles/scheme-from-scratch-bootstrap-v0_21-standard-library)
     * [Part 23 - Garbage Collection](http://peter.michaux.ca/articles/scheme-from-scratch-bootstrap-v0_22-garbage-collection)
     * [Part 24 - Conclusion](http://peter.michaux.ca/articles/scheme-from-scratch-bootstrap-conclusion)
-* Writing a C Compiler
+* Writing a C Compiler [In-progress]
     * [Part 1 - Integers](https://norasandler.com/2017/11/29/Write-a-Compiler.html)
     * [Part 2 - Unary Operators](https://norasandler.com/2017/12/05/Write-a-Compiler-2.html)
     * [Part 3 - Binary Operators](https://norasandler.com/2017/12/15/Write-a-Compiler-3.html)
@@ -79,7 +79,7 @@ A list of C tutorials that work through the creation of small and or large proje
     * [Part 8 - Expressions](https://github.com/lotabout/write-a-C-interpreter/blob/master/tutorial/en/8-Expressions.md)
 * [Hack the Virtual Memory](https://blog.holbertonschool.com/hack-virtual-memory-stack-registers-assembly-code/)
 * [Emulator 101](http://emulator101.com/)
-* [How to Program a Text Adventure in C](https://helderman.github.io/htpataic/htpataic01.html)
+* [How to Program a Text Adventure in C](https://helderman.github.io/htpataic/htpataic01.html) [In-progress]
 
 ## Videos
 
@@ -89,8 +89,8 @@ A list of C tutorials that work through the creation of small and or large proje
 * [Coding A Sudoku Solver in C](https://www.youtube.com/playlist?list=PLkTXsX7igf8edTYU92nU-f5Ntzuf-RKvW)
 * [Coding a Rogue/Nethack RPG in C](https://www.youtube.com/playlist?list=PLkTXsX7igf8erbWGYT4iSAhpnJLJ0Nk5G)
 * [Learn Socket Programming in C from Scratch](https://www.udemy.com/learn-socket-programming-in-c-from-scratch/)
-* [Bitwise](https://github.com/pervognsen/bitwise)
-* [Handmade Hero](https://handmadehero.org/)
+* [Bitwise](https://github.com/pervognsen/bitwise) [In-progress]
+* [Handmade Hero](https://handmadehero.org/) [In-progress]
 
 ## Similar