added merge pdfs, fixed jpgstopdf arg issues,

sample_tests/sample_test_yaml.md

@@ -0,0 +1,17 @@
+- **name**: Sample Project
+- **description**: This is a sample YAML file to test the YAML to Markdown conversion script.
+- **version**: 1.0.0
+- **authors**:
+    - **name**: John Doe
+    - **email**: john.doe@example.com
+    - **name**: Jane Smith
+    - **email**: jane.smith@example.com
+- **dependencies**:
+    - **package**: pandas
+    - **version**: 1.3.0
+    - **package**: numpy
+    - **version**: 1.21.0
+- **features**:
+    - Supports YAML to Markdown conversion
+    - Handles nested dictionaries and lists
+    - Easy to use