nit: aligns literal definition

Signed-off-by: Vincent Biret <[email protected]>

Author: baywet

src/oas.md

@@ -564,12 +564,12 @@ server-url-template            = 1*( literals / template-expression )
 template-expression            = "{" template-expression-param-name "}"
 template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF ) ; every UTF8 character except { and }
 
-literals                       = 1*( %x21 / %x23-24 / %x26 / %x28-3B / %x3D / %x3F-5B
-                                  / %x5D / %x5F / %x61-7A / %x7E / ucschar / iprivate
-                                  / pct-encoded)
-                                      ; any Unicode character except: CTL, SP,
-                                      ;  DQUOTE, "'", "%" (aside from pct-encoded),
-                                      ;  "<", ">", "\", "^", "`", "{", "|", "}"
+literals       = 1*( %x21 / %x23-24 / %x26 / %x28-3B / %x3D / %x3F-5B
+               / %x5D / %x5F / %x61-7A / %x7E / ucschar / iprivate
+               / pct-encoded)
+                    ; any Unicode character except: CTL, SP,
+                    ;  DQUOTE, "'", "%" (aside from pct-encoded),
+                    ;  "<", ">", "\", "^", "`", "{", "|", "}"
 pct-encoded    =  "%" HEXDIG HEXDIG
 ucschar        =  %xA0-D7FF / %xF900-FDCF / %xFDF0-FFEF
                /  %x10000-1FFFD / %x20000-2FFFD / %x30000-3FFFD