Update integration_rules.json

I got rid of all the empty lines in the code.

data/mathematics/integration_rules.json

@@ -1,53 +1,37 @@
 {
   "description":"Integration rules for any function",
-
   "constant": [
     "integral a dx = ax + C, where a and C are both constants"
   ],
-
   "variable": [
     "integral x dx = (x^2)/2+ C"
   ],
-
   "square": [
     "integral x^2 dx  = (x^3)/3 + C"
   ],
-
   "reciprocals": [
     "integral (1/x) dx = ln|x| + C"
-
   ],
-
   "exponential functions": [
     "integral e^x dx = e^x + C",
     "integral a^x dx = a^x/ln(a) + C",
     "integral ln(x) dx = x ln(x) -x + C"
-
   ],
   "trigonometric functions":[
     "integral cos(x) dx = sin(x) + C",
     "integral sin(x) dx = -cos(x) + C",
     "integral sec^2(x) dx = tan(x) + C"
-
   ],
-
   "power":[
     "integral x^n dx = (x^(n+1)/n+1) C"
-
   ],
-
   "difference":[
     "integral (f - g) dx = integral f dx - integral g dx"
-
   ],
   "multiplication by constant":[
     "integral cf(x) dx = c (integral f(x) dx), where c is a constant"
-
   ],
-
   "parts":[
     "integral u v da = u(integral v da) - integral u`(integral v da) da; u isfunction of u(a); v is function of v(a); u` is derivative of function u(a)"
-
   ]
-
 }