increase execution time, lift cpu cap, updated docs

docker/executors/c

@@ -1,4 +1,4 @@
 #!/bin/sh
 
 gcc -o binary -x c $1
-timeout -s KILL 2 ./binary
+timeout -s KILL 3 ./binary

docker/executors/cpp

@@ -1,4 +1,4 @@
 #!/bin/sh
 
 g++ -o binary -x c $1
-timeout -s KILL 2 ./binary
+timeout -s KILL 3 ./binary

docker/executors/go

@@ -6,4 +6,4 @@ go build $file
 
 file=${file%%.*}
 
-timeout -s KILL 2 ./$file
+timeout -s KILL 3 ./$file

docker/executors/node

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 nodejs $*
+timeout -s KILL 3 nodejs $*

docker/executors/python2

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 python2 $*
+timeout -s KILL 3 python2 $*

docker/executors/python3

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 python3.6 $*
+timeout -s KILL 3 python3.6 $*

docker/executors/ruby

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-timeout -s KILL 2 ruby $*
+timeout -s KILL 3 ruby $*