Update rawstr4c.md

Author: ccmywish

src/recipe/lang/rawstr4c.md

@@ -5,7 +5,7 @@
  ! Config Authors: Aoran Zeng <[email protected]>
  ! Contributors  :  Nil Null  <[email protected]>
  ! Created On    : <2025-07-14>
- ! Last Modified : <2025-07-15>
+ ! Last Modified : <2025-07-16>
  ! ---------------------------------------------------------- -->
 
 # rawstr4c input
@@ -17,6 +17,8 @@
 
 ## Java
 
+- namespace = `java`
+
 ### maven config
 
 ```xml
@@ -45,6 +47,10 @@ allprojects {
 
 ## stackage
 
+- name = `haskell_stackage`
+- keep-postfix = `true`
+- postfix = `yaml`
+
 ```yaml
 package-index:
   download-prefix: @url@
@@ -68,6 +74,8 @@ package-index:
 
 ## Clojar
 
+- namespace = `clojure`
+
 ### project.clj
 
 ```clojure