Merge pull request #1 from shenki/patch-1

Add building hints
diff --git a/cheatsheet.md b/cheatsheet.md
index 211b0c1..1f7f355 100644
--- a/cheatsheet.md
+++ b/cheatsheet.md
@@ -22,4 +22,21 @@
 The `SRCREV` variable can be used to set an explicit git commit. The
 default (`${AUTOREV}`) will use the latest commit in `KBRANCH`.
 
+## Building for Palmetto
 
+The Palmetto target is `palmetto`.
+
+If you are starting from scratch without a `build/conf` directory you can just:
+```
+$ cd openbmc
+$ TEMPLATECONF=meta-openbmc-machines/meta-openpower/meta-ibm/meta-palmetto/conf . oe-init-build-env
+$ obmc-phosphor-image
+```
+
+## Rebuilds & Reconfiguration
+
+You can reconfigure your build by removing the build/conf dir:
+```
+rm -rf build/conf
+```
+and running `oe-init-build-env` again (possibly with `TEMPLATE_CONF` set).