Update README.md

Author: maehw

README.md

@@ -8,7 +8,7 @@ This project is written in Python3.
 > This project is work in progress. It is known that not all designs are generated correctly, so there are still some bugs.
 
 
-Feel free to contribute, open issues, etc.
+Feel free to contribute, open issues, [work on existing issues](https://github.com/maehw/wokwi-lookup-table-generator/issues), etc.
 To contribute to the project, fork this GitHub repository and create a pull request. Detailed instructions can be found at https://docs.github.com/en/get-started/quickstart/contributing-to-projects. I'll be happy to review the code diff and eventually merge it into the original repo here.
 
 
@@ -37,33 +37,33 @@ Examples:
 Only specifying the input file name, will dump the wokwi schematic via `stdout`:
 
 ```
-python3 generate.py -f 2bit_half_adder.logic.json
+python3 generate.py -f ./demos/2bit_half_adder.logic.json
 ```
 
 Only specifying the input file name, will dump the wokwi schematic via `stdout` (piped to `/dev/null`), log level `DEBUG`:
 
 ```
-python3 generate.py -f 2bit_half_adder.logic.json -vv > /dev/null
+python3 generate.py -f ./demos/2bit_half_adder.logic.json -vv > /dev/null
 ```
 
 Specify an output file for the wokwi schematic:
 
 ```
-python3 generate.py -f 2bit_half_adder.logic.json -o 2bit_half_adder.diagram.json
+python3 generate.py -f ./demos/2bit_half_adder.logic.json -o 2bit_half_adder.diagram.json
 ```
 
 Specify an output file for the wokwi schematic externally but also show contents on `stdout` by [piping it through `tee`](https://en.wikipedia.org/wiki/Tee_(command)):
 
 ```
-python3 generate.py -f 2bit_half_adder.logic.json | tee 2bit_half_adder.diagram.json
+python3 generate.py -f ./demos/2bit_half_adder.logic.json | tee 2bit_half_adder.diagram.json
 ```
 
 Switches `-p` and `-c` allow to limit the dump to wokwi parts ony respectively wokwi connections only.
 
 This feature can be used to modify existing designs only. The following command can be used on Mac OS X to **copy** the parts of the design into the **p**aste **b**uffer:
 
 ```
-python3 generate.py -f bcd_7segment_lut.logic.json -p | sed 's/[{}]//' | pbcopy
+python3 generate.py -f ./demos/bcd_7segment_lut.logic.json -p | sed 's/[{}]//' | pbcopy
 ```
 
 
@@ -113,10 +113,12 @@ The author says:
 - perform sanity checks to see if all parts are connected,
   some may be unused due to bugs (probably rounding)
 
+Some TODOs or ideas are already visible in the [issues tab](https://github.com/maehw/wokwi-lookup-table-generator/issues). Especially have a look at the issues labeled `good first issue` and `help wanted`.
+
 
 ## Demo designs
 
-For descriptions of the demo designs, inspect their JSON files.
+For descriptions of the demo designs, inspect their JSON files in the `./demos` subdirectory of this repo.
 
 > **Warning**
 > The Quine McCluskey algorithm currently does not give deterministic results. An issue has been opened [here](https://github.com/tpircher/quine-mccluskey/issues/8).