Update README.md

Author: Pythonista7

README.md

@@ -10,7 +10,8 @@
     `$sudo tar -C /bin/xgraph/ -xvf xgraph_4.38_linux64.tar.gz `
    <br><br> NOTE: <br>a. I have untarred this to my /bin/xgraph/ directory(of which the xgraph dir is once which Ive mkdir'd).You can choose to untar it to your desired location by replacing /bin/xgraph to your destination dir path.  
    		<br>b. This untared dir has a bin dir which contains the xgraph executable which we need to add to .bashrc 
-4. Navigate to home using directory and open .bashrc file
+4. Navigate to home using directory and open .bashrc file 
+(.bashrc is a hidden file and hence may not show up in your file-explorer,either options->show hidden files or open it on VIM via the terminal).
 5. Create Alias for the command , add the below line into bashrc file<br>
 	`alias xgraph='path_to_the_untarred_dir/bin/xgraph' `
 7. Run the below command to reflect changes made to bashrc :<br>