docs: improve README.md, add FAQ section

Signed-off-by: Stephan Wendel <me@stephanwe.de>

README.md

@@ -21,6 +21,20 @@ A webcam daemon for Raspberry Pi OS Lite images like mainsailOS
 
 So, this will be the 'lookout point' for your Printer.
 
+## Foreword
+
+Thank you for choosing crowsnest as your stream service.
+
+If you have any trouble that isnt corelated to my bad code :wink:
+See [FAQ](#faq) section for first aid.
+Please join our Discord server if you need further help.
+
+Do not open issues that are based on misconfiguration!
+This makes it harder for me to keep track of issues in my code.
+
+Thanks in advance
+Regards KwadFan
+
 ### Installation
 
     cd ~
@@ -307,6 +321,56 @@ If you have discoverd your setup write that to your webcam.conf as described.
 
 ---
 
+## FAQ
+
+---
+
+**Q:** I get / keep getting Error 127 in line 31. What can I do?
+
+**A:** Simple fix. For what ever Reason ustreamer wont start. Run the following commands please.
+
+    sudo systemctl stop crowsnest.service
+    cd ~/crowsnest
+    make buildclean
+    make build
+    sudo systemctl start crowsnest.service
+
+Did it work? If your answer is yes... Was easy right? :wink:
+
+---
+
+**Q:** I set `mode` to rtsp, but I get now stream in VLC. What should I do?
+**A:** Read your log. If you are not using a raspicam or a camera with an inbuilt "H264" encoder, chances are equal to zero, to get a rtsp stream. Sorry :man_shrugging:
+
+---
+
+**Q:** I have twice the same model of a USB Cam, cant get both to show up. What can I do?
+**A:** Easy fix: Run
+
+    ls -l /dev/v4l/by-path
+
+Grab the two equal named devices, ending with `index0`
+
+Use that paths as device path in your crowsnest.conf!
+
+---
+
+**Q:** How do I contribute the best way?
+**A:** Well..-
+
+1. Create an Issue related to your topic.
+2. Prepare an _tested_ Pull Request against the develop branch
+    - Please use commits formatted according to [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/)
+    - Make sure not to ignore code formating as provided via .editorconfig of this repo
+3. Be patient. Every PR has to pass some sort of "internal gates" before it will hit the master branch, unless an immediate reaction is crutial.
+
+---
+
+**Q:** But Kwad I want you to support in person, because \<fillinyourreason>! How?
+**A:** Buy me a coffee at [ko-fi.com](https://ko-fi.com/U7U2GK66P)
+
+---
+
 ## CustomPIOS Module
 
 I have decided to provide an [CustomPiOS Module](https://github.com/guysoft/CustomPiOS) to make it easier to integrate to other Distributions like MainsailOS or similar.