fix typos

CONTRIBUTING.md

@@ -48,7 +48,7 @@ Filecoin, including venus and all related modules, follows the
 
 ## How can I contribute?
 
-Here at `venus`, there’s always a lot of work to do. There are many ways you can support the project, from progamming, writing, organizing, and more. Consider these as starting points:
+Here at `venus`, there’s always a lot of work to do. There are many ways you can support the project, from programming, writing, organizing, and more. Consider these as starting points:
 
 - **Submit bugs**: Perform a cursory [search](https://github.com/filecoin-project/venus/issues) to see if the problem has already been reported. If it does exist, add a 👍 to the issue to indicate this is also an issue for you, and add a comment if there is extra information you can contribute. If it does not exist, [create a new issue](https://github.com/filecoin-project/venus/issues/new/choose) (using the Bug report template).
 

designdocs.md

@@ -75,7 +75,7 @@ having to parse all the discussions that went into it.
 ## FAQ
 
 ##### How do I know what warrants a designdoc?
-A designdoc is a tool so like any apply it judiciously. If you’re building something that other devs are going to work within, or with, and it’s going to take you weeks or months to do it, it’s probably a good candidate for a designdoc. Or if it’s something critically important to the project, that’s probably also worth one. Or if it's a separate thingy with its own structure, then too.
+A designdoc is a tool so like any apply it judiciously. If you’re building something that other devs are going to work within, or with, and it’s going to take you weeks or months to do it, it’s probably a good candidate for a designdoc. Or if it’s something critically important to the project, that’s probably also worth one. Or if it's a separate thing with its own structure, then too.
 
 ##### But what if the designdoc is wrong? 
 With probability 1 it will be wrong. The point is to explicitly communicate what we are and are not trying to accomplish and to rationalize a proposal. It’s a planning tool and as soon as it is finished reality will start to diverge. But as they say: plans are worthless but planning is indispensable.

pkg/paychmgr/simple.go

@@ -731,7 +731,7 @@ func (pm *Manager) restartPending(ctx context.Context) error {
 	return group.Wait()
 }
 
-// getPaychWaitReady waits for a the response to the message with the given cid
+// getPaychWaitReady waits for the response to the message with the given cid
 func (ca *channelAccessor) getPaychWaitReady(ctx context.Context, mcid cid.Cid) (address.Address, error) {
 	ca.lk.Lock()
 

pkg/vf3/signer.go

@@ -15,7 +15,7 @@ type signer struct {
 }
 
 // Sign signs a message with the private key corresponding to a public key.
-// The the key must be known by the wallet and be of BLS type.
+// The key must be known by the wallet and be of BLS type.
 func (s *signer) Sign(ctx context.Context, sender gpbft.PubKey, msg []byte) ([]byte, error) {
 	addr, err := address.NewBLSAddress(sender)
 	if err != nil {

venus-shared/types/tipset_key.go

@@ -58,7 +58,7 @@ func NewTipSetKey(cids ...cid.Cid) TipSetKey {
 type TipSetKey struct {
 	// The internal representation is a concatenation of the bytes of the CIDs, which are
 	// self-describing, wrapped as a string.
-	// These gymnastics make the a TipSetKey usable as a map key.
+	// These gymnastics make a TipSetKey usable as a map key.
 	// The empty key has value "".
 	value string
 }