Minor AnimationNodeBlendSpace2D documentation fixes #64

Job	Run time
📊 Static checks / Code style, file formatting, and docs	1m 3s
🐧 Linux / Editor w/ Mono (target=editor)	39m 32s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	46m 7s
🏁 Windows / Editor (target=editor, tests=yes)	48m 2s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	35m 29s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	25m 35s
🏁 Windows / Template (target=template_release)	34m 24s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	30m 53s
🌐 Web / Template w/o threads (target=template_release, threads=no)	26m 32s
🤖 Android / Editor (target=editor)	24m 40s
🐧 Linux / Template w/ Mono (target=template_release)	27m 17s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	17m 2s
🐧 Linux / Minimal template (target=template_release, everything disabled)	14m 56s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	17m 51s
🍏 iOS / Template (target=template_release)	12m 53s
🍎 macOS / Editor (target=editor, tests=yes)	33m 27s
🍎 macOS / Template (target=template_release)	21m 16s
🪲 Godot CPP / Build and test Godot CPP	8m 10s
	7h 45m 9s

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