docs: fix building markdown documentation

general/g.region/g.region.md

@@ -396,7 +396,7 @@ g.region -l format=json
 *[g.access](g.access.md), [g.mapsets](g.mapsets.md),
 [g.proj](g.proj.md)  
 Environment variables: [GRASS_REGION and
-WIND_OVERRIDE](variables.md#internal)*
+WIND_OVERRIDE](variables.md#list-of-selected-internal-grass-environment-variables)*
 
 ## AUTHOR
 

gui/wxpython/docs/wxGUI.iscatt.md

@@ -1,7 +1,7 @@
 ## KEYWORDS
 
 [display](display.md), [GUI](topic_GUI.md),
-[imagery](keywords.md#imagery), [scatterplot](keywords.md#scatterplot),
+[imagery](keywords.md#imagery), [scatterplot](keywords.md),
 [plot](keywords.md#plot)
 
 ## DESCRIPTION

imagery/i.gensigset/i.gensigset.md

@@ -151,7 +151,7 @@ then the user should check for:
 
 ## SEE ALSO
 
-*[r.support](r.support), [i.group](i.group.md), [i.smap](i.smap.md),
+*[r.support](r.support.md), [i.group](i.group.md), [i.smap](i.smap.md),
 [r.info](r.info.md), [r.univar](r.univar.md), [wxGUI vector
 digitizer](wxGUI.vdigit.md)*
 

raster/r.resamp.filter/r.resamp.filter.md

@@ -43,10 +43,10 @@ infinite kernel along with a finite window.
 
 To smooth a map, keeping its resolution, a good starting point is to use
 the filters **gauss,box** with the radii *0.5 \* input resolution*, *2
-\* input resolution*. See also [r.neighbors](r.neighbors.html)
+\* input resolution*. See also [r.neighbors](r.neighbors.md)
 
 When resampling a map to a higher resolution (alternative to
-interpolation, e.g. [r.resamp.interp](r.resamp.interp.html)), a good
+interpolation, e.g. [r.resamp.interp](r.resamp.interp.md)), a good
 starting point is to use the filters **gauss,box** with the radii *1.5
 \* input resolution*, *3 \* input resolution*.
 

raster/r.surf.idw/r.surf.idw.md

@@ -13,7 +13,7 @@ values. The search procedure for the selection of nearest neighboring
 points will consider all input data, without regard to the mask. The
 **-e** flag is the error analysis option that interpolates values only
 for those cells of the input raster map which have non-zero values and
-outputs the difference (see [NOTES](#minuse) below).
+outputs the difference (see [NOTES](#surface-generation-error-analysis) below).
 
 The **npoints** parameter defines the number of nearest data points used
 to determine the interpolated value of an output raster cell.

vector/v.label.sa/v.label.sa.md

@@ -36,7 +36,7 @@ Labeling Algorithm, Cartographica, Vol. 33, No. 4, Winter 1996, pp.
 
 ## SEE ALSO
 
-*[d.label](v.labels.md)  
+*[v.label](v.label.md)  
 [d.labels](d.labels.md)  
 [ps.map](ps.map.md) [Wikipedia article on simulated
 annealing](https://en.wikipedia.org/wiki/Simulated_Annealing)*  

vector/v.random/v.random.md

@@ -28,7 +28,7 @@ generated in total.
 
 Attributes attached to **restrict** vector map are also transferred if
 the **layer** parameter is defined \> 0, see
-*[example](#stratified-random-sampling:-random-sampling-from-vector-map-by-attribute)*
+*[example](#stratified-random-sampling-random-sampling-from-vector-map-by-attribute)*
 below.
 
 ## NOTES