Create install documentation for PS2 and update PSP info

docs/guides/install-ps2.md

@@ -0,0 +1,27 @@
+# Downloading and Installing RetroArch for PlayStation 2
+
+## PlayStation 2
+
+**Note:** You currently need the have a way to execute homebrew to run RetroArch on your PlayStation 2.
+
+## Prerequisites
+
+This is probably the most straightforward way to install RetroArch.
+
+- FreeMCBoot
+
+### Downloading and installing
+
+At this time we can only use the Stable version of 1.8.2, this will be improved in the future.
+
+#### Downloading
+
+You can download a bundle with RetroArch, all the supported cores and all the assets by clicking [here](http://buildbot.libretro.com/stable/1.8.2/playstation/ps2/RetroArch_elf.7z). 
+
+#### Installing
+
+Installation is also very simple. Just create `RetroArch` folder where put all the cores (.elf). Copy this folder into a USB stick. Finally, use your favorite file explorer (usually `UlaunchELF`) to navigate to `mass0:\`, then enter in `RetroArch` folder and launch the core you wish.
+
+#### Video Tutorial
+
+[![Quick Video Demonstration](https://i.ytimg.com/vi/qwL-H0-K4Wo/hqdefault.jpg)](https://www.youtube.com/watch?v=qwL-H0-K4Wo)

docs/guides/install-psp.md

@@ -13,11 +13,11 @@ This is probably the most straightforward way to install RetroArch.
 
 ### Downloading and installing
 
-At this time we can only use the Stable version of 1.7.0, this will be improved in the future.
+At this time we can only use the Stable version of 1.8.2, this will be improved in the future.
 
 #### Downloading
 
-You can download a bundle with RetroArch, all the supported cores and all the assets by clicking [here](https://buildbot.libretro.com/stable/1.7.0/playstation/psp/RetroArch.7z). 
+You can download a bundle with RetroArch, all the supported cores and all the assets by clicking [here](https://buildbot.libretro.com/stable/1.8.2/playstation/psp/RetroArch.7z). 
 
 #### Installing
 

mkdocs.yml

@@ -21,7 +21,8 @@ nav:
       - 'Sony':
         - 'PlayStation Portable': 'guides/install-psp.md'
         - 'PlayStation Vita': 'guides/install-psv.md'
-        - 'PlayStation3': 'guides/install-ps3.md'
+        - 'PlayStation 2': 'guides/install-ps2.md'
+        - 'PlayStation 3': 'guides/install-ps3.md'
       - 'Others':
         - 'Lakka-PC': 'guides/install-lakka.md' 
         - 'Steam Link': 'guides/install-steamlink.md'