Add missing final newlines

config.json

@@ -881,4 +881,4 @@
     "typing/weak",
     "used_for/scripts"
   ]
-}
+}

exercises/practice/camicia/.meta/config.json

@@ -16,4 +16,4 @@
   "blurb": "Simulate the card game and determine whether the match ends or enters an infinite loop.",
   "source": "Beggar-My-Neighbour",
   "source_url": "https://www.richardpmann.com/beggar-my-neighbour-records.html"
-}
+}

exercises/practice/circular-buffer/circular_buffer.vader

@@ -103,4 +103,3 @@ Execute (initial clear does not affect wrapping around):
   AssertEqual g:buffer.Read(), 4
   AssertThrows call g:buffer.Read()
   AssertEqual "Empty buffer", g:vader_exception
-

exercises/practice/leap/.approaches/if-else-statements/content.md

@@ -19,4 +19,4 @@ The clauses for each are checked sequentially until one produces a truthy value.
 Each clause checks if a year is evenly divisible by another number by checking the remainder of their division.
 If a year is evenly divisible by 400, the first clause produces a truthy value so the command within the if branch is executed, returning 1.
 If it's not evenly divisible, Vim proceeds to the next clause until one produces a truthy value or the else statement is hit.
-In that case, 0 is returned because the year failed all three checks. 
+In that case, 0 is returned because the year failed all three checks.

exercises/practice/leap/.approaches/if-else-statements/snippet.txt

@@ -5,4 +5,4 @@ function! LeapYear(year) abort
     return 0
   elseif a:year % 4 == 0
     return 1
-# cut for snippet brevity
+# cut for snippet brevity

exercises/practice/perfect-numbers/.meta/example.vim

@@ -26,4 +26,4 @@ function! Classify(number) abort
   else
     return 'abundant'
   endif
-endfunction
+endfunction

exercises/practice/word-count/.meta/example.vim

@@ -9,4 +9,4 @@ function! WordCount(phrase)
   endfor
 
   return words
-endfunction
+endfunction