minor doc corrections

Author: Blebowski

nvc.1

@@ -1106,8 +1106,8 @@ fold TB_TOP_LIB.TB_TOP.DUT.I_CPU_DATAPATH.I_INSTR_CACHE UNIT_TEST_LIB.CACHE_UNIT
 .Ss Code coverage limitations
 When part of the design hierarchy is formed by an if-generate-else or
 case-generate statement, the hierarchical path of implicit block statements
-for each of the if-else branches / case choices is the same unless
-user uses alternative label for the branch or choice. Therefore code
+for each of the if-else branches / case choices is the same (unless
+user uses alternative label for the branch or choice). Therefore, code
 coverage items in such distinc blocks will have equal hierarchical path.
 Consider following example:
 .Bd -literal -offset indent
@@ -1124,7 +1124,7 @@ When merging code coverage and generating code coverage report, NVC recognizes
 these two coverage items are distinc despite their equal hierarchical path.
 NVC distinguishes these two coverage items based on different location in the
 source code. NVC does not merge such two items, and displays them separately
-in the code coverage items (no aliasing will occur). However, since these two
+in the code coverage report (no aliasing will occur). However, since these two
 coverage items have equal hierarchical paths, it is not possible to distinguish
 them in the exclude file. Either both or none can be excluded.
 Consider another example:
@@ -1137,10 +1137,10 @@ when op_sub => my_inst : entity work.ent
 end generate my_gen;
 .Ed
 The two instances will have completely equal hierarchical paths. Since
-they are both implemented by the same entity, all coverage items between
-the two of them will have equal hierarchical paths as well as locations
+they are both implemented by the same entity, coverage items in these two
+instances will have equal hierarchical paths as well as locations
 in the source code. Coverage data from these two instances will alias
-and NVC will merge them together. To guarantee fine-grained exlude possibility
+and NVC will merge them together. To allow fine-grained control of exlcusions
 or prevent aliasing in corner-cases, it is recommended to use alternative
 labels for branches / choices of if-generage-else and case-generate
 statements.