fix indentation [ci skip]

docs/developers-guide-osx.md

@@ -16,9 +16,9 @@ The following steps need to be done before building the Mac App:
     You can download a copy of a JRE from https://adoptopenjdk.net/releases.html?jvmVariant=hotspot — make sure you download a JRE rather than JDK. Move the `Contents/Home` directory from the JRE archive into `OSX/Metabase/jre`. For example:
 
     ```bash
-wget https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.8%2B10/OpenJDK11U-jre_x64_mac_hotspot_11.0.8_10.tar.gz
-tar -xzvf OpenJDK11U-jre_x64_mac_hotspot_11.0.8_10.tar.gz
-mv jdk-11.0.8+10-jre/Contents/Home OSX/Metabase/jre
+    wget https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.8%2B10/OpenJDK11U-jre_x64_mac_hotspot_11.0.8_10.tar.gz
+    tar -xzvf OpenJDK11U-jre_x64_mac_hotspot_11.0.8_10.tar.gz
+    mv jdk-11.0.8+10-jre/Contents/Home OSX/Metabase/jre
     ```
 
     **VERY IMPORTANT!**