example needed srs_string and updated news for 0.4.1 release

Author: jhollist

NEWS.md

@@ -1,3 +1,12 @@
+elevatr 0.4.1 (2021-07-21)
+==============
+
+# Bug Fixes
+- Previously errored on solaris.  Skipped tests.  A fix has been proposed within
+  sp.  Once that is available can re-test on solaris.
+- Updated CITATION file to reference new version and new Zenodo DOI
+
+
 elevatr 0.4.0 (2021-07-19)
 ==========================
 

R/get_elev_point.R

@@ -48,7 +48,7 @@
 #' mts <- rbind(mt_wash,mt_mans)
 #' ll_prj <- "EPSG:4326"
 #' mts_sp <- sp::SpatialPoints(sp::coordinates(mts), 
-#'                             proj4string = sp::CRS(ll_prj))
+#'                             proj4string = sp::CRS(SRS_string = ll_prj))
 #' mts_spdf <- sp::SpatialPointsDataFrame(mts_sp, 
 #'                                        data = data.frame(name = 
 #'                                        c("Mt. Washington", "Mt. Mansfield")))