Update docs

Author: mrueda

README.md

@@ -112,14 +112,7 @@ First install system level dependencies:
 
     sudo apt-get install cpanminus libperl-dev gcc make
 
-Now you have to choose between one of the 2 options below:
-
-**Option 1:** System-level installation:
-
-    cpanm --notest --sudo Pheno::Ranker
-    pheno-ranker -h
-
-**Option 2:** Install Pheno-Ranker and the dependencies at `~/perl5`
+We will install Pheno-Ranker and the dependencies at `~/perl5`
 
     cpanm --local-lib=~/perl5 local::lib && eval $(perl -I ~/perl5/lib/perl5/ -Mlocal::lib)
     cpanm --notest Pheno::Ranker

bin/pheno-ranker

@@ -354,14 +354,7 @@ First install system level dependencies:
 
   sudo apt-get install cpanminus libperl-dev gcc make
 
-Now you have to choose between one of the 2 options below:
-
-B<Option 1:> System-level installation:
-
-  cpanm --notest --sudo Pheno::Ranker
-  pheno-ranker -h
-
-B<Option 2:> Install Pheno-Ranker and the dependencies at C<~/perl5>
+We will install Pheno-Ranker and the dependencies at C<~/perl5>
 
   cpanm --local-lib=~/perl5 local::lib && eval $(perl -I ~/perl5/lib/perl5/ -Mlocal::lib)
   cpanm --notest Pheno::Ranker