Change instructions for development build

The plugin has to be placed in the build directory of Kodi to be found.

README.md

@@ -27,9 +27,10 @@ For any support regarding this plugin, please create a github issue.
 
 1. `git clone --branch master https://github.com/xbmc/xbmc.git`
 2. `git clone --branch Piers https://github.com/flubshi/pvr.waipu.git`
-3. `cd pvr.waipu && mkdir build && cd build`
-4. `cmake -DADDONS_TO_BUILD=pvr.waipu -DADDON_SRC_PREFIX=../.. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=../../xbmc/addons -DPACKAGE_ZIP=1 ../../xbmc/cmake/addons`
-5. `make`
+3. Build Kodi first
+4. `cd pvr.waipu && mkdir build && cd build`
+5. `cmake -DADDONS_TO_BUILD=pvr.waipu -DADDON_SRC_PREFIX=../.. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=<Kodi-build-dir>/addons -DPACKAGE_ZIP=1 ../../xbmc/cmake/addons`
+6. `make`
 
 
 ## Useful links