feat: final details + docs

image-converter/README.md

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+# Image converter
+
+Simple tool to convert images on mass.
+
+- Resize
+- Format
+
+
+## Usage
+
+- `-H <height>` : max height of vertical images.
+- `-W <width>` : max width of horizontal images.
+- `-e <extension>` : extension of the output files.
+- `-d <directory>` : input directory path.
+- `-f <file/s>` : file or list of files (paths) to parse.
+- `-o <directory>` : output directory path.
+- `-h` : print help.
+
+### Examples of usage
+
+- `python converter.py -d ./assets -f ./another/file.png ./yet\ one\ more/file2.CR2 -e png -W 1000` : convert every file inside assets plus both `file.png` and `file2.CR2` into `PNG` with a with of 1000.