updated build instruction after testing on backup system

README.md

@@ -9,8 +9,10 @@ Revamping and restructuring Automotive Grade Linux's documentation site under GS
 
 1) Clone this Repository : ```git clone https://github.com/growupboron/agl-docs.git```
 
-2) Install MkDocs and rtd-dropdown theme : ```pip install -r requirements.txt```
+2) Change into the directory : ```cd agl-docs/```
 
-3) Serve it, it would get defaultly rendered at [127.0.0.1:8000/](127.0.0.1:8000/) : ```mkdocs serve```
+3) Install MkDocs and rtd-dropdown theme : ```sudo pip3 install -r requirements.txt```
+
+4) Serve it, it would get defaultly rendered at [127.0.0.1:8000/](127.0.0.1:8000/) : ```sudo mkdocs serve```