document linux release process

closes #5030

README.rst

@@ -91,25 +91,25 @@ Create translations (optional)::
 Creating Binaries
 =================
 
+Linux
+-----
 
-To create binaries, create the 'packages' directory::
+See :code:`contrib/build-linux/Readme.md`.
 
-    ./contrib/make_packages
-
-This directory contains the python dependencies used by Electrum.
 
 Mac OS X / macOS
---------
+----------------
+
+See :code:`contrib/osx/Readme.md`.
 
-See `contrib/osx/`.
 
 Windows
 -------
 
-See `contrib/build-wine/`.
+See :code:`contrib/build-wine/docker/Readme.md`.
 
 
 Android
 -------
 
-See `electrum/gui/kivy/Readme.md` file.
+See :code:`electrum/gui/kivy/Readme.md`.

contrib/build-linux/README.md

@@ -0,0 +1,20 @@
+Source tarballs
+===============
+
+1. Build locale files
+
+    ```
+    contrib/make_locale
+    ```
+
+2. Prepare python dependencies used by Electrum.
+
+    ```
+    contrib/make_packages
+    ```
+
+3. Create source tarball.
+
+    ```
+    contrib/make_tgz
+    ```