docs/philosophy.rst: style fixes

docs/source/theory/philosophy.rst

@@ -12,7 +12,7 @@ Shell Agnostic
 --------------
 
 - Kapow! knows nothing about the shell you are using.
-- It only spawn binaries.
+- It only spawns executables.
 - You can use anything you want that ends interacting with the `data
   api`.
 - This helps with multiplatform and with future higher level tools.
@@ -23,7 +23,7 @@ Not a Silver Bullet
 
 You should not use Kapow! for projects with complex business logic.
 
-If you try to encode business logic in a shell script you will regret
-**deeply**.
+If you try to encode business logic in a shell script, you will **deeply**
+regret it.
 
 Kapow! is for automating simple stuff.