Classify SRecode Templates as a separate language

lib/linguist/languages.yml

@@ -991,7 +991,6 @@ Emacs Lisp:
   - .el
   - .emacs
   - .emacs.desktop
-  - .srt
   ace_mode: lisp
 
 EmberScript:
@@ -3337,6 +3336,14 @@ SQLPL:
   - .sql
   - .db2
 
+SRecode Template:
+  type: markup
+  color: "#338733"
+  tm_scope: source.lisp
+  ace_mode: lisp
+  extensions:
+  - .srt
+
 STON:
   type: data
   group: Smalltalk