Minor documentation fixes

[javagl]

Sorry, I'm pedantic. Some minor documentation fixes:

• Wrong link, isCubemap should be isCompressed: https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/include/ktx.h#L329
• Unnecessary n at https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/include/ktx.h#L341
• Typo: "betweeb" should be "between" at https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/lib/texture.c#L831
• Unnecessary < at https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/tools/ktx/command_create.cpp#L765
• The link to pyktx is missing ../ in https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/pkgdoc/toolsDoxyLayout.xml#L41 and related files (I.e. on https://github.khronos.org/KTX-Software/libktx/index.html , the link to pyktx is a 404), see https://github.com/search?q=repo%3AKhronosGroup%2FKTX-Software%20%22pyktx%20Reference%22&type=code

Beyond that:

I'm pretty sure that the codecName at https://github.com/KhronosGroup/KTX-Software/blob/7a45c4e6159c0815e4663a529a1e718136a16e39/tools/ktx/encode_utils.h#L269 is not used and could be removed. But this would not be a plain documentation fix. So I'd rather ask whether this can be removed (and whether this should/could be part of this PR)

[MarkCallow]

Sorry, I'm pedantic

No apology necessary.

I'm pretty sure that the codecName at

KTX-Software/tools/ktx/encode_utils.h

Line 269 in 7a45c4e std::string codecName; is not used and could be removed.

This part of the source is about to be refactored. It will be dealt with then.