docs update

Author: tinebp

README.md

@@ -68,4 +68,24 @@ More detailed build instructions can be found [here](docs/install_vortex.md).
 ### Building Vortex
     $ make -s
 ### Quick demo running vecadd OpenCL kernel on 2 cores
-    $ ./ci/blackbox.sh --cores=2 --app=vecadd
+    $ ./ci/blackbox.sh --cores=2 --app=vecadd
+
+### Common Developer Tips
+- Installing Vortex kernel and runtime libraries to use with external tools requires passing --prefix=<install-path> to the configure script.
+    ```sh
+    $ ../configure --xlen=32 --tooldir=$HOME/tools --prefix=<install-path>
+    $ make -s
+    $ make install
+    ``````
+- Building Vortex 64-bit simply requires using --xlen=64 configure option.
+    ```sh
+    $ ../configure --xlen=32 --tooldir=$HOME/tools
+    ```
+- Sourcing "./ci/toolchain_env.sh" is required everytime you start a new terminal. we recommend adding "source <build-path>/ci/toolchain_env.sh" to your ~/.bashrc file to automate the process at login.
+    ```sh
+    $ echo "source <build-path>/ci/toolchain_env.sh" >> ~/.bashrc
+    ```
+- Making changes to Makefiles in your source tree or adding new folders will require executing the "configure" script again to get it propagated into your build folder.
+    ```sh
+    $ ../configure
+    ```