Update build script regarding relocation

guide_build.sh

@@ -3,17 +3,15 @@
 ## Avoid the use of shell builtin echo (for -e option)
 alias echo='/bin/echo -e'
 
-## Check dependancies
+## Check dependencies
 ##-------------------
 
 ## Sphinx, BibTeX extension and "Read The Docs" theme
-if [ -n "$( ./tools/check_pkg.py sphinx sphinxcontrib.bibtex sphinx_rtd_theme )" ]; then
+if [ -n "$( ./check_pkg.py sphinx sphinxcontrib.bibtex sphinx_rtd_theme )" ]; then
     echo 'One of the Python dependencies is missing => QUIT'
     exit 2
 fi
 
-cd rst
-
 echo "\t¤ Clean previous build"
 make clean
 echo
@@ -23,7 +21,6 @@ make html > /dev/null
 echo
 
 echo "\t¤ End of building run"
-echo "Open ./rst/build/html/NEMO_guide.html"
-cd - > /dev/null
+echo "Open ./build/html/guide.html"
 
 exit 0