README: fix typo in folder name

Author: AndreiCherniaev

README

@@ -50,8 +50,9 @@ To build and install gpredict from source, first unpack the source package:
 Then change to the gpredict-x.y.z directory and build gpredict:
 
   ./configure
-  make -j$(( $(nproc) + 1))
-  make install
+  
+  
+
 
 The last step usually requires you to become root, otherwise you may not have
 the required permissions to install gpredict. If you can not or do not want to
@@ -60,7 +61,7 @@ adding --prefix=somedir to the ./configure step. For example
 
   ./configure --prefix="$HOME/predict"
 
-will configure the build to install the files into /home/user/gpredict folder.
+will configure the build to install the files into /home/user/predict folder.
 
 If you are building directly from the git repository, you have to run
 ./autogen.sh instead of of configure. You can pass the same options to the