Fixes README typos

[jritchie-nullable]

• fixes references to Algorand
• fixes typo
• updates BIP 32 path

[jritchie-nullable]

https://github.com/LedgerHQ/ledgerjs/issues/781

[codecov[bot]]

Codecov Report

Merging #782 (d3736e1) into master (39ff487) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #782   +/-   ##
=======================================
  Coverage   43.51%   43.51%           
=======================================
  Files          81       81           
  Lines        4883     4883           
  Branches      859      859           
=======================================
  Hits         2125     2125           
  Misses       2744     2744           
  Partials       14       14           

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[gre]

the doc is generated from the code, the typo are in comment of the code.

[gre]

if you run yarn doc it will regenerate it. but the root issue is at https://github.com/LedgerHQ/ledgerjs/blob/d3736e136b55100ec3c6464253224eb8013fd34a/packages/hw-app-algorand/src/Algorand.ts#L35

[gre]

I'll take it