Fix Opera ffmpeg library

- Add script
- Add Readme

fix-opera.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# Run using sudo
+if [[ $(whoami) != "root" ]]; then
+  printf 'Try to run it with sudo\n'
+  exit 1
+fi
+
+readonly TEMP_FOLDER='/tmp/'
+readonly OPERA_FOLDER='/usr/lib/x86_64-linux-gnu/opera/'
+readonly FILE_NAME='libffmpeg.so'
+readonly ZIP_FILE='.zip'
+readonly TEMP_FILE="$TEMP_FOLDER$FILE_NAME"
+readonly OPERA_FILE="$OPERA_FOLDER$FILE_NAME"
+
+readonly GIT_API=https://api.github.com/repos/iteufel/nwjs-ffmpeg-prebuilt/releases/latest
+
+printf '\nGetting Url ...\n'
+
+readonly OPERA_FFMPEG_URL=$(curl -s $GIT_API | grep browser_download_url | cut -d '"' -f 4 | grep linux-x64)
+
+printf '\nDownloading ffmpeg ...\n'
+
+wget $OPERA_FFMPEG_URL -O "$TEMP_FILE$ZIP_FILE"
+
+printf "\nUnzipping ...\n\n"
+
+unzip "$TEMP_FILE$ZIP_FILE" -d $TEMP_FILE
+
+printf "\nMoving file on $OPERA_FILE ...\n"
+
+mv -f "$TEMP_FILE/$FILE_NAME" $OPERA_FILE
+
+printf '\nDeleting Temporary files ...\n'
+
+find $TEMP_FOLDER -name "*$FILE_NAME*" -delete