Revert "Update INSTALL_UBUNTU.md"

This reverts commit 9ba3644d.

Revert "Update INSTALL_UBUNTU.md"
This reverts commit 9ba3644d.
7e44297a · Arnaud Blanchard · 9778c227 · 7e44297a
Commit 7e44297a authored Apr 02, 2019 by Arnaud Blanchard
--- a/INSTALL_UBUNTU.md
+++ b/INSTALL_UBUNTU.md
-Install blaar on Ubuntu or Raspbian (rasperry pi)
-=================================================
+Install blaar on Ubuntu
+=======================

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