Fix TWI bug in cheatsheets (thanks @tylerbhampton)

Author: florisvdh

latex/cs_qgisprocess_en.tex

@@ -315,7 +315,7 @@
  > qgis_run_algorithm(
     algorithm ="sagang:sagawetnessindex",
     DEM = dem,
-    TPI = "tpi.sdat") |>
+    TWI = "twi.sdat") |>
     qgis_extract_output("TWI") |>
     qgis_as_terra() |>
     plot(col = cptcity::cpt(pal = "ocal_blues"))

latex/cs_qgisprocess_es.tex

@@ -317,7 +317,7 @@
  > qgis_run_algorithm(
     algorithm ="sagang:sagawetnessindex",
     DEM = dem,
-    TPI = "tpi.sdat") |>
+    TWI = "twi.sdat") |>
     qgis_extract_output("TWI") |>
     qgis_as_terra() |>
     plot(col = cptcity::cpt(pal = "ocal_blues"))