Merge pull request #1048 from ie3-institute/to/#999-doc-fix

Fix line.md documentation

Author: danielfeismann

docs/readthedocs/models/input/grid/line.md

@@ -29,15 +29,15 @@ Representation of an AC line.
 
    * - x
      - Ω / km
-     - Phase resistance per length
+     - Phase reactance per length
 
    * - g
      - µS / km
      - Phase-to-ground conductance per length
 
    * - b
      - µS / km
-     - Phase-to-ground conductance per length
+     - Phase-to-ground susceptance per length
 
    * - iMax
      - A