Add some info to readme.

Add link to readme to the app.

README.md

@@ -4,13 +4,13 @@
 
 This software allows you to translate any text on screen.
 Basically it is a combination of screen capture, OCR and translation tools.
+Translation is currently done via online services.
 
 ## Installation
 
 **Windows**: download archive from [github releases](https://github.com/OneMoreGres/ScreenTranslator/releases) page, extract it and run `.exe` file.
 
-If the app fails to start with missing dll's error then install `vs_redist*.exe` from the release archive.
+If the app fails to start complaining about missing dlls or there are any update errors related to SSL/TLS then install or repair `vs_redist*.exe` from the release archive.
-If you have any update errors related to SSL/TLS you should also install or repair `vcredist 2010` (from the Microsoft website).
 
 **Linux**: download `.AppImage` file from [github releases](https://github.com/OneMoreGres/ScreenTranslator/releases), make executable (`chmod +x <file>`) and run it.
 
@@ -18,13 +18,27 @@ If you have any update errors related to SSL/TLS you should also install or repa
 
 ## Setup
 
-Start the app, open the updates page of the settings window
+The app doesn't have a main window.
-and install required recognition languages, translators and, optionally,
+After start it shows only the tray icon.
-hunspell dictionaries.
 
-After languages/translators installation set default recognition and
+If the app detects invalid settings, it will show the error message via system tray. 
-translation languages, enable some (or all) translators
+It will also highlight the section name in red on the left panel of the settings window.
-and the `translate text` setting if needed.
+Clicking on that section name will show a more detailed error message in the right panel (also in red).
+
+The packages downloaded from this site do not include resources, such as recognition language packs or scripts to interact with online translation services.
+
+To download them, open the settings window and go to the `Update` section.
+In the right panel, expand the `recognizers` and `translators` sections.
+Select preferred items, then right click and choose `Install/Update`.
+After the progress bar reaches `100%`, the resource's state will change to `Up to Date`.
+
+You must download at least one `recognizers` resource and one `translators` resource.
+
+After finishing downloads, go to the `Recognition` section and update the default recognition language setting (the source to be translated).
+Then go to the `Translation` section, update the default translation language setting (the language to be translated into) and enable some or all translation sevices (you may also change their order by dragging).
+
+After that all sections in the left panel should be black.
+Then click `Ok` to close settings.
 
 ## Usage
 
@@ -36,6 +50,12 @@ and the `translate text` setting if needed.
 
 ## FAQ
 
+By default resources are downloaded to the one of the user's folders.
+If `Portable` setting in `General` section is checked, then resources will be downloaded to the app's folder.
+
+If you are experiencing crashes during the app usage, then try changing `tesseract library version` from `Optimized` to `Compatible`.
+It provides the same functionality, but should work on the bigger variety of hardware.
+
 Answers to some frequently asked questions can be found in issues or
 [wiki](https://github.com/OneMoreGres/ScreenTranslator/wiki/FAQ)
 

src/settingseditor.cpp

@@ -190,11 +190,15 @@ SettingsEditor::SettingsEditor(Manager &manager, update::Updater &updater)
         baseUrl + "/blob/master/share/Changelog_" +
         (locale.language() == QLocale::Russian ? "ru" : "en") + ".md";
     const auto license = baseUrl + "/blob/master/LICENSE.md";
+    const auto help = locale.language() == QLocale::Russian
+    ? "https://translator.gres.biz/page/download/"
+    : baseUrl + "/blob/master/README.md";
     const auto aboutLines = QStringList{
         QObject::tr(
             R"(<p>Optical character recognition (OCR) and translation tool</p>)"),
         QObject::tr(R"(<p>Version: %1</p>)")
             .arg(QApplication::applicationVersion()),
+        QObject::tr(R"(<p>Setup instructions: <a href="%1">%1</a></p>)").arg(help),
         QObject::tr(R"(<p>Changelog: <a href="%1">%2</a></p>)")
             .arg(changelog, QUrl(changelog).fileName()),
         QObject::tr(R"(<p>License: <a href="%3">MIT</a></p>)").arg(license),