Typos, wording, links...

[pegleGrot]

A few small issues:

• C.168. "Flag operator definitions that are not it the namespace of their operands" -- it -> in.
• R.1, In "See also: RAII", links to self.
• ES.49. "(e.g. from float to double or int64 from int32)" -- better use "int32 to int64" for consistency?
• E.6: "See also" links to non-existent #Se-noexcept instead of #Re-noexcept.
• E.15: Under Note, the links link to a different base URL, rather than just target hashes.
• T (intro): "...found in another ISO TS: ranges"(.) -- missing period.
• T.60: ..."an algorithm usually uses other algorithms and invoke operations that"... -- invoke -> invokes.
• T.65: In example, "template<class Itert>" -- Itert -> Iter.

[cubbimew]

Thanks. E.6 was already fixed in 778b44c ,E.15 was fixed in ef78ef4, I applied the rest.