fix bookmaker

Add an entry in SkTextBlob_Reference.bmh for getIntercepts().
Fix spelling for patheffect -> SkPathEffect and
maskfilter -> SkMaskFilter.

TBR=reed@google.com
NOTRY=true

Bug: skia:
Change-Id: I8f03ea24eb1208ac6f4015b03b98470a4169d880
Reviewed-on: https://skia-review.googlesource.com/c/176480
Reviewed-by: Cary Clark <caryclark@skia.org>
Commit-Queue: Cary Clark <caryclark@skia.org>
Auto-Submit: Cary Clark <caryclark@skia.org>
diff --git a/include/core/SkTextBlob.h b/include/core/SkTextBlob.h
index e596979..a9f8834 100644
--- a/include/core/SkTextBlob.h
+++ b/include/core/SkTextBlob.h
@@ -60,7 +60,7 @@
 
         @param bounds     lower and upper line parallel to the advance
         @param intervals  returned intersections; may be nullptr
-        @param paint      specifies stroking, patheffect that may affect the result; may be nullptr
+        @param paint      specifies stroking, SkPathEffect that affects the result; may be nullptr
         @return           number of intersections; may be zero
      */
     int getIntercepts(const SkScalar bounds[2], SkScalar intervals[],