Fixed table rendering for lines begining with | for GFM

[marekdedic]

Altered table rendering so that it is more in line with what Github does.

The problem was (for example) in tables such as:

**Délka**|**Věk**|**Zač.**| |**Pokr.**| |**Vysp.**| |**Rychlost km/h**
:-----:|:-----:|:-----:|:-----:|:-----:|:-----:|:-----:|:-----:|:-----:
| | |*km*|*kg*|*km*|*kg*|*km*|*kg*| 
*1 den*|4 - 6|6|-|-|-|-|-|do 2
 |6 - 7|7|-|8|-|9|-|2,5
 |7 - 9|8|2|10|2|12|2|3
 |9 - 11|10|4|12|5|14|6|3
 |11 - 13|12|6|15|7|18|6|3,5
 |13 - 15|15|7,5|18|9|21|10,5|4
 |15 - 18|20|9,5|25|12|30|14,5|4,5
*2 dny*|10 - 11|15|4|20|5|24|6|3
 |11 - 13|20|6|25|7|30|8|3,5
 |13 - 15|25|7,5|30|9|35|10,5|4
 |15 - 18|36|9,5|45|12|54|14,5|4,5
*3 dny*|12 - 13|28|6|35|7|42|8|3,5
 |13 - 15|33|7,5|40|9|47|10,5|4
 |15 - 18|48|9,5|60|12|72|14,5| 

Délka	Věk	Zač.		Pokr.		Vysp.		Rychlost km/h
		km	kg	km	kg	km	kg
1 den	4 - 6	6	-	-	-	-	-	do 2
6 - 7	7	-	8	-	9	-	2,5
7 - 9	8	2	10	2	12	2	3
9 - 11	10	4	12	5	14	6	3
11 - 13	12	6	15	7	18	6	3,5
13 - 15	15	7,5	18	9	21	10,5	4
15 - 18	20	9,5	25	12	30	14,5	4,5
2 dny	10 - 11	15	4	20	5	24	6	3
11 - 13	20	6	25	7	30	8	3,5
13 - 15	25	7,5	30	9	35	10,5	4
15 - 18	36	9,5	45	12	54	14,5	4,5
3 dny	12 - 13	28	6	35	7	42	8	3,5
13 - 15	33	7,5	40	9	47	10,5	4
15 - 18	48	9,5	60	12	72	14,5

[cebe]

Merged, thank you!

[marekdedic]

May I ask why you have commited the code instead of merging the PR? Not that I mind in any way, just curious...

[cebe]

I check out the branch, tested the code, and rebased on master. Just another workflow and creates a cleaner git history than with merge commits, e.g. avoids to have things like this in the history c64396a. You are still the author of the commit, reflected in https://github.com/cebe/markdown/graphs/contributors.