Fix few randomly spotted typos

guidelines/hierarchy.md

@@ -86,7 +86,7 @@ via file such as *.gitignore*.
 ### notes ###
 
 Documentation related to your project.  Evertything from guidelines to
-newcomer howtos, style guides, design notes, philpsophy articles...
+newcomer howtos, style guides, design notes, philosophy articles...
 
 
 ### utils ###
@@ -148,7 +148,7 @@ A "living" example: [shellfu][2]:
     │   ├── complete.bash           #
     │   ├── include-bash            #   notice that tree here does
     │   │   └── ...                 #   not attempt to strictly follow
-    │   ├── include-sh              #   final placement, jsut hinting
+    │   ├── include-sh              #   final placement, just hinting
     │   │   └── ...                 #   is enough
     │   └── shellfu.sh.skel         # /
     ├── tests                   # \