Reorder code owner definition according to change risk

Author: smowton

CODEOWNERS

@@ -1,36 +1,37 @@
 # These owners will be the default owners for everything in the repo.
 *       @kroening @tautschnig @peterschrammel
 
-src/java_bytecode/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli @Degiorgio @NathanJPhillips
-src/jbmc/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli @Degiorgio @NathanJPhillips
-src/miniz/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli
+# These files should rarely change
 
 src/ansi-c/ @marek-trtik @kroening @tautschnig
+src/linking/ @smowton @kroening @tautschnig @peterschrammel @marek-trtik
+src/miniz/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli
 
-src/cpp/ @marek-trtik @kroening @tautschnig
-
-CMakeLists.txt @reuk @thk123
 
-cmake/ @reuk @thk123
+# These files change frequently and changes are high-risk
 
+src/goto-programs/ @smowton @kroening @tautschnig @peterschrammel @marek-trtik
 src/solvers/ @martin-cs @romainbrenguier @antlechner @kroening
-
+src/java_bytecode/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli @Degiorgio @NathanJPhillips
 src/analyses/ @martin-cs @peterschrammel @thk123 @marek-trtik @NathanJPhillips
+src/pointer-analysis/ @martin-cs @peterschrammel @thk123 @marek-trtik
 
-src/pointer-analysis/ @martin-cs @peterschrammel @thk123 @marek-trtik 
 
-src/goto-analyzer/ @martin-cs @peterschrammel @thk123 @marek-trtik 
+# These files change frequently and changes are medium-risk
 
-src/goto-instrument/ @martin-cs @peterschrammel @thk123 @marek-trtik  
+src/goto-analyzer/ @martin-cs @peterschrammel @thk123 @marek-trtik
+src/goto-instrument/ @martin-cs @peterschrammel @thk123 @marek-trtik
+src/jbmc/ @smowton @mgudemann @cristina-david @jgwilson42 @pkesseli @Degiorgio @NathanJPhillips
+src/cpp/ @marek-trtik @kroening @tautschnig
 
-src/goto-programs/ @smowton @kroening @tautschnig @peterschrammel @marek-trtik  
 
-src/linking/ @smowton @kroening @tautschnig @peterschrammel @marek-trtik  
+# These files change frequently and changes are low-risk
 
 unit/ @diffblue/cbmc-developers
-
 regression/ @diffblue/cbmc-developers
 
+CMakeLists.txt @reuk @thk123
+cmake/ @reuk @thk123
+
 .travis.yml @diffblue/devops @thk123 @forejtv @jgwilson42 @rabiamarzhiya
 appveyor.yml @diffblue/devops @thk123 @forejtv @jgwilson42 @rabiamarzhiya
-