Merge pull request #1035 from T1DLiberation/master

Adding "Recommended specification" on the docs

docs/EN/Installing-AndroidAPS/Building-APK.md

@@ -16,6 +16,45 @@ If your build fails with an error regarding "on demand configuration" you can do
 * In the left pane, click Build, Execution, Deployment > Compiler.
 * Uncheck the Configure on demand checkbox.
 * Click Apply or OK.
+
+## Recommended specification of computer for building apk file
+
+<table class="tg">
+<thead>
+  <tr>
+    <th class="tg-baqh">OS(Only 64 bit)</th>
+    <th class="tg-baqh">Windows 8 or higher</th>
+    <th class="tg-baqh">Mac OS 10.14 or higher</th>
+    <th class="tg-baqh">Any Linux supports Gnome, KDE, or Unity DE;&nbsp;&nbsp;GNU C Library 2.31 or later</th>
+  </tr>
+</thead>
+<tbody>
+  <tr>
+    <td class="tg-baqh"><p align="center">CPU(Only 64 bit)</td>
+    <td class="tg-baqh">x86_64 CPU architecture; 2nd generation Intel Core or newer, or AMD CPU with support for a <br><a href="https://developer.android.com/studio/run/emulator-acceleration#vm-windows" target="_blank" rel="noopener noreferrer"><span style="text-decoration:var(--devsite-link-text-decoration,none)">Windows Hypervisor</span></a></td>
+    <td class="tg-baqh">ARM-based chips, or 2nd generation Intel Core or newer with support for <br><a href="https://developer.android.com/studio/run/emulator-acceleration#vm-mac" target="_blank" rel="noopener noreferrer"><span style="text-decoration:var(--devsite-link-text-decoration,none)">Hypervisor.Framework</span></a></td>
+    <td class="tg-baqh">x86_64 CPU architecture; 2nd generation Intel Core or newer, or AMD processor with support for AMD Virtualization (AMD-V) and SSSE3</td>
+  </tr>
+  <tr>
+    <td class="tg-baqh"><p align="center">RAM</td>
+    <td class="tg-baqh" colspan="3"><p align="center">8GB or more</td>
+  </tr>
+  <tr>
+    <td class="tg-baqh"><p align="center">Disk</td>
+    <td class="tg-baqh" colspan="3"><p align="center">At least 30GB free space. SSD is recommended.</td>
+  </tr>
+  <tr>
+    <td class="tg-baqh"><p align="center">Resolution</td>
+    <td class="tg-baqh" colspan="3"><p align="center">1280 x 800 Minimum <br></td>
+  </tr>
+  <tr>
+    <td class="tg-baqh"><p align="center">Internet</td>
+    <td class="tg-baqh" colspan="3"><p align="center">Broadband</td>
+  </tr>
+</tbody>
+</table>
+
+Please be in mind that both **64 bit CPU and 64 bit OS are mandatory condition.** If your system DOES NOT meet this condition, you have to change affected hardware or software or the whole system. **It is strongly recommended to use SSD(Solid State Disk) instead of HDD(Hard Disk Drive) because it will take less time when you are building the APS installation apk file.** Recommended is just recommended and it is not a mandatory. However, you may still use a HDD when you are building apk file if you can spend a long time ALONE to complete the build.
 
 ---
 ### This article is divided into two parts.