Fix misspellings of the word bellow in READMEs

modules/prompt/README.md

@@ -34,7 +34,7 @@ including a function that displays help or a function used to preview it.
 
 **Do not call this function directly.**
 
-The most basic example of this function can be seen bellow.
+The most basic example of this function can be seen below.
 
     function prompt_name_setup {
       PROMPT='%m%# '

runcoms/README.md

@@ -38,7 +38,7 @@ small as possible and should only define environment variables.
 ### zprofile
 
 This file is similar to zlogin, but it is sourced before zshrc. It was added
-for [KornShell][1] fans. See the description of zlogin bellow for what it may
+for [KornShell][1] fans. See the description of zlogin below for what it may
 contain.
 
 zprofile and zlogin are not meant to be used concurrently but can be done so.