Fix .form-inline docs example

BS3 commits: 20ba8ad6f05403833f0cbb5f820a2d1811269d41
Use a 40x40 image for the `navbar` brand image example.

BS3 commits: 5660be42faef7fecdd9121e052265da55202ae3c
give all docs callouts IDs

BS3 commits: ea407666ce3c5d708b4a830fb2d00bdcb0d2d53e
Add missing callouts
Fix a small grammar mistake.

BS3 commits: 6ce4ca75a22ae490d0a5cf23f947868dba51e831
bump remarkable devDependency to ~1.4.1

BS3 commits: a7682e3fde01e2b5e7c12cea10ca2d4251f73e69
clarify that Bower is one among several installation methods

BS3 commits: 7bdc307b70caaad69fd88a6a9dd6de6a97e1505c
Fix link

BS3 commits: 14857bd4a2d4486a12d0f8bacb3abd703cf8c1c7