Added run_scripts exercises

exercises/run_scripts/README.md

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+# Sequential Script Executor
+
+This project contains a simple C program that sequentially executes one or more bash scripts using `fork()` and `execlp()`.
+
+## Features
+
+* Spawns a child process for each script
+* Executes scripts using `/bin/bash`
+* Waits for each child to finish before proceeding
+* Reports exit status or signal termination
+
+## Usage
+
+### Build
+
+```bash
+make
+```
+
+### Run with example scripts
+
+```bash
+make run
+```
+
+### Run manually
+
+```bash
+./run_scripts script1.sh script2.sh
+```
+
+### Run with Valgrind
+
+```bash
+make valgrind
+```
+
+### Clean build
+
+```bash
+make clean
+```
+
+## Project Structure
+
+```
+run_scripts/             # Root project folder
+├── main.c               # Main source code
+├── Makefile             # Build automation
+├── README.md            # Project documentation
+└── tests/             # Example bash scripts for testing
+    ├── hello.sh
+    └── fail.sh
+```
+
+## Example Output
+
+```sh
+execute script 1: test1.sh
+script test1.sh exited with code 0
+execute script 2: test2.sh
+script test2.sh exited with code 0
+```
+
+## Notes
+
+* You can add as many scripts as needed in the command-line arguments.
+* This tool can be used to batch test or automate shell scripts.
+
+## License
+
+MIT License
+