doc: fix typo in the "Build ACRN from Source" guide
Fixes a small typo. See also
@@ -68,7 +68,7 @@ each with their own way to install development tools:
.. code-block:: none
$ wget https://mirrors.ocf.berkeley.edu/gnu/binutils/binutils-2.27.tar.gz
- $ tar xzvf binutils-2.27 && cd binutils-2.27
+ $ tar xzvf binutils-2.27.tar.gz && cd binutils-2.27
$ ./configure
$ make
$ sudo make install
