Fix typo and spelling errors

Link fix, and a couple things from my spell checker.

Author: Dave-Allured

RELEASE_NOTES.md

@@ -7,7 +7,7 @@ This file contains a high-level description of this package's evolution. Release
 
 ## 4.8.2 - TBD
 
-* [Bug Fix] Clean up the handling of deeply nested VLEN types. Marks nc_free_vlen() and nc_free_string as deprecated in favor of ncaux_reclaim_data(). See [Github #2179(https://github.com/Unidata/netcdf-c/pull/2179).
+* [Bug Fix] Clean up the handling of deeply nested VLEN types. Marks nc_free_vlen() and nc_free_string as deprecated in favor of ncaux_reclaim_data(). See [Github #2179](https://github.com/Unidata/netcdf-c/pull/2179).
 * [Bug Fix] Make sure that netcdf.h accurately defines the flags in the open/create mode flags. See [Github #2183](https://github.com/Unidata/netcdf-c/pull/2183).
 * [Enhancement] Improve support for msys2+mingw platform. See [Github #2171](https://github.com/Unidata/netcdf-c/pull/2171).
 * [Bug Fix] Clean up the various inter-test dependencies in ncdump for CMake. See [Github #2168](https://github.com/Unidata/netcdf-c/pull/2168).
@@ -191,7 +191,7 @@ See [GitHub #1251](https://github.com/Unidata/netcdf-c/issues/1251).
 * [Enhancement] Create a new version of _NCProperties provenance attribute. This version (version 2) supports arbitrary key-value pairs. It is the default when new files are created. Version 1 continues to be accepted.
 * [Enhancement] Allow user to set http read buffersize for DAP2 and  DAP4 using the tag HTTP.READ.BUFFERSIZE in the .daprc file.
 * [Enhancement] Allow user to set http keepalive for DAP2 and  DAP4 using the tag HTTP.KEEPALIVE in the .daprc file (see the OPeNDAP documentation for details).
-* [Enhancement] Support DAP4 remote tests using a new remote test server locatedon the Unidata JetStream project.
+* [Enhancement] Support DAP4 remote tests using a new remote test server located on the Unidata JetStream project.
 * [Enhancement] Improved the performance of the nc_get/put_vars operations by using the equivalent slab capabilities of hdf5. Result is a significant speedup of these operations.  See [GitHub #1001](https://github.com/Unidata/netcdf-c/pull/1001) for more information.
 * [Enhancement] Expanded the capabilities of `NC_INMEMORY` to support writing and accessing the final modified memory.  See [GitHub #879](https://github.com/Unidata/netcdf-c/pull/879) for more information.
 * [Enhancement] Made CDF5 support enabled by default.  See [Github #931](https://github.com/Unidata/netcdf-c/issues/931) for more information.
@@ -1392,7 +1392,7 @@ closely mimic the output from the original ncgen.
 allow most existing HDF5 datasets to be read by netCDF-4.
 
 * Fixed bug with endianness of default fill values for integer types when
-variables are created with a non-native endiannesss and use the default
+variables are created with a non-native endianness and use the default
 fill value.
 
 * Significant refactoring of HDF5 type handling to improve performance and