Update class name structure

Author: Lachlan Campbell

docs/layout/max-widths/index.html

@@ -92,18 +92,9 @@ <h4 class="f4 mv0 fw6 dib mr4">tachyons-max-widths</h4>
   7  = 7th step in width scale
   8  = 8th step in width scale
   9  = 9th step in width scale
-  10 = 10th step in width scale
 
-  -25   = literal value 10%
-  -50   = literal value 20%
-  -75   = literal value 25%
   -100  = literal value 33%
-
   -none  = none
-  -max   = max-content
-  -min   = min-content
-  -fit   = fit-content
-  -fill  = fill-available
 
 Media Query Extensions:
   -ns = not-small

src/templates/docs/max-widths/index.html

@@ -56,18 +56,9 @@ <h4 class="f4 mv0 fw6 dib mr4"><%= name %></h4>
   7  = 7th step in width scale
   8  = 8th step in width scale
   9  = 9th step in width scale
-  10 = 10th step in width scale
 
-  -25   = literal value 10%
-  -50   = literal value 20%
-  -75   = literal value 25%
   -100  = literal value 33%
-
   -none  = none
-  -max   = max-content
-  -min   = min-content
-  -fit   = fit-content
-  -fill  = fill-available
 
 Media Query Extensions:
   -ns = not-small