fix for projects with only code.py

Author: FoamyGuy

Diff for: README.md

@@ -20,7 +20,14 @@ It will create images in the `generated_images` directory.
 ### Generate Single Learn Guide Image
 
 ```shell
-python3 create_requirement_images.py --guide [Learn Guide Name]
+python3 create_requirement_images.py learn --guide [Learn Guide Name]
 # OR
-python3 create_requirement_images.py -g [Learn Guide Name]
+python3 create_requirement_images.py learn -g [Learn Guide Name]
 ```
+
+### Help Command
+The help command will list all possible commands and arguments.
+
+```shell
+python3 create_requirement_images.py --help
+```

Diff for: create_requirement_images.py

@@ -415,6 +415,10 @@ def make_sd_dir(position):
         PADDING + (LINE_SPACING * (7 + project_files_count)),
     )
     make_libraries(final_list_to_render, _libraries_position)
+
+    if project_files_count == 0:
+        project_files_count = 1
+
     _sd_dir_position = (
         76,
         PADDING