Ignore standard build directory.

Author: Mailaender

Diff for: .gitignore

@@ -1 +1,2 @@
 .flatpak-builder/
+/build-dir/

Diff for: README.md

@@ -1 +1,27 @@
-https://flathub.org/apps/details/org.eclipse.Java is built from this repo.
+This the Flatpak version of [Eclipse IDE](https://www.eclipse.org/ide/).
+
+## Build
+
+To build locally run
+```
+flatpak-builder build-dir --force-clean org.eclipse.Java.json
+```
+
+Test the installation using
+```
+flatpak-builder --user --install --force-clean build-dir org.eclipse.Java.json
+```
+
+## Run
+```
+flatpak run org.eclipse.Java
+```
+
+## Install
+
+To install a stable release version from the repository use the following:
+```
+flatpak remote-add flathub https://flathub.org/repo/flathub.flatpakrepo
+flatpak install flathub org.eclipse.Java.json
+```
+