Update instructions in README.txt.

src/windows/README.txt

@@ -1,42 +1,61 @@
+TRANSLATORS:
+
+1. Use an editor that has NSIS syntax highlighting(eg Geany). This will 
+   make your life easier.
+2. Open the relevant .nsi file that exists in the folder named 
+   "installer-translations"
+3. Lines starting with ";" are considered comments. These include the 
+   english message to help you with the translation.
+4. Edit only the part inside the quotation marks(""). Unless you know 
+   what you are doing.
+5. Submit your changes: 1) as a pull request to the official git repo or
+   2) open an issue to the bugtracker and attach them or 3) via email or
+   4)the same way you provide the tranlations for qbt itself
+
+PACKAGERS:
+
 You will need NSIS and upx to make the installer.
 
-Open the qbittorrent.nsi file in an editor and change line that contains "!define PROG_VERSION "3.0.3"" to the version of qbittorrent you just built. 
+1. Open the options.nsi file in an editor and change line that contains
+   "!define PROG_VERSION "3.0.3"" to the version of qbittorrent you just built. 
+2. Extract the plugins found in the folder "nsis plugins" into the your 
+   NSIS's Plugin directory(usually C:\Program Files\NSIS\Plugins).
+   Only the *.dll files are needed.
+3. The script you need to compile is "qbittorrent.nsi". It includes all other necessary scripts.
+4. The script expects the following file tree:
 
 The installer script expects the following file tree:
 
 Root:
+installer-translations
+	afrikaans.nsi
+	....
+	(all the .nsi files found here in every source release)
+	welsh.nsi
 translations
 	qt_ar.qm
-	qt_bg.qm
-	qt_ca.qm
-	qt_cs.qm
-	qt_da.qm
-	qt_de.qm
-	qt_es.qm	
-	qt_fi.qm
-	qt_fr.qm
-	qt_gl.qm
-	qt_he.qm
-	qt_hu.qm
-	qt_it.qm
-	qt_ja.qm
-	qt_ko.qm
-	qt_lt.qm
-	qt_nl.qm
-	qt_pl.qm
-	qt_pt.qm
-	qt_pt_BR.qm
-	qt_ru.qm
-	qt_sk.qm	
-	qt_sv.qm
-	qt_tr.qm
-	qt_uk.qm
-	qt_zh_CN.qm
+	...
+	(all the .qm files found here in every source release)
 	qt_zh_TW.qm
+installer.nsi
 license.txt
+options.nsi
 qbittorrent.exe
 qbittorrent.nsi
 qt.conf
+translations.nsi
+uninstaller.nsi
 
 
-license.txt is a text file that contains the text rendered from src\gpl.html
+5. "license.txt" is a text file that contains the text rendered 
+   from src\gpl.html or the text contained in COPYING
+6. "qbittorrent.exe" is the compiled binary file.
+
+SCRIPT HACKERS:
+
+If you add any new LangString variable to the scripts you NEED to provide
+"translations" of it to all the .nsi files inside "installer-translations.
+You can always leave the english string but you have to use all the LANG_<lang name> 
+for the given variable. Otherwise, if the user chooses a language that you 
+haven't provide a LANG_<lang name> for your variable then your string will be empty. 
+Don't worry though, NSIS throws warnings for this when compiling the scripts.