am b50e7e0f: am 65b59f50: am 1af587b3: am 4623c0d8: docs: Add basic tool help pages for SDK and AVD Manager. The SDK Manager page is needed particularly as a reference by some pages rather than pointing to the installation guide.

* commit 'b50e7e0f8a81e8a802896211c4c2448143d3325e':
  docs: Add basic tool help pages for SDK and AVD Manager. The SDK Manager page is needed particularly as a reference by some pages rather than pointing to the installation guide.