Add note about where the keycloak sources can be located

src/keycloak-theme/README.md

@@ -0,0 +1,29 @@
+Your theme source files should be located in a keycloak-theme directory somewhere in your src directory OR at the root of your directory.  
+Acceptable directory strucuture:  
+
+```txt
+src/
+  keycloak-theme/
+    login/
+    account/
+    email/
+    
+===OR===
+
+src/
+  foo/
+    bar/
+      keycloak-theme/
+        login/
+        account/
+        email/
+
+===OR===
+
+src/
+  login/
+  account/
+  email/
+```
+
+You don't need to have all three variant of the theme. If you only need the login theme for example you can have only the login directory.